- Allen, J. L., 1968, Gas chromatographic separation and quantitative estimation of barbiturate mixtures in solid dosage forms: Journal of the Association of Official Analytical Chemists, v. 51, no. 3, p. 619 - 621
- Andrews, R., 1968, The changing seasons--the 1968 spring migration: Audubon Field Notes, v. 22, no. 4, p. 502 - 504
- Armstrong, R. L.; Hamilton, W.; Denton, G. H., 1968, Glaciation in Taylor Valley, Antarctica, older than 2.7 million years: Science, v. 159, no. 3811, p. 187 - 189
- Babad, H.; Herbert, W.; Goldberg, M. C., 1968, Nuclear magnetic resonance studies of phosphorus(v) pesticides. Part I. Chemical shifts of protons as a means of identification of pesticides: Analytica Chimica Acta, v. 41, no. C, p. 259 - 268
- Babad, H.; Taylor, T. N.; Goldberg, M. C., 1968, Nuclear magnetic resonance studies of the phosphorus(v) pesticides. A rapid determination of the isomer ratio of systox1 1 Publication authorised by the Director U.S. Geological Survey.: Analytica Chimica Acta, v. 40, no. C, p. 387 - 392
- Balser, D. S.; Dill, H. H.; Nelson, H. K., 1968, Effect of predator reduction on waterfowl nesting success: Journal of Wildlife Management, v. 32, no. 4, p. 669 - 682
- Banko, W.E., 1968, Rediscovery of Maui nukupuu, Hemignathus lucidus affinis, and sighting of Maui parrotbill, Pseudonestor xanthophrys. Kipahulu Valley, Maui, Hawaii: Condor, v. 70, no. 3, p. 265 - 266
- Banko, W.E., 1968, Hawaii‘s endangered birds--A status appraisal: 'Elepaio, v. 28, no. 7, p. 58 - 64
- Banko, W.E.; Wilson, N., 1968, Notes on the mammals of Kipahulu Valley: 'Elepaio, v. 29, no. 4, p. 29 - 31
- Banks, R.C., 1968, [Book review] Reilly, Edgar M., Jr. The Audubon Illustrated Handbook of American Birds. McGraw-Hill. 1968. Illus. Pp. 524: Atlantic Naturalist, v. 23, no. 4, p. 226 - 227
- Banks, R.C., 1968, [Book review] Hindwood, Keith. Australian Birds in Color. East-West Center Press. Honolulu. 1966. Pp. 112: Atlantic Naturalist, v. 23, no. 2,
- Banks, R.C., 1968, [Book review] Hanzak, J. The Pictorial Encyclopedia of Birds. Edited by Bruce Campbell, American Consultant Ned R. Boyajian. Crown. 1967. 582 pp., 1,075 photographs, 45 color photos: Atlantic Naturalist, v. 23, no. 3, p. 167 - 169
- Banks, R.C., 1968, [Book review] McClung, Robert. Redbird: The Story of a Cardinal. William Morrow. 1968. Pp. 00. Illus: Atlantic Naturalist, v. 23, no. 2,
- Banks, R.C., 1968, Annotated bibliography of Nevada ornithology since 1951: Great Basin Naturalist, v. 28, p. 49 - 60
- Banks, R.C.; Bohl, W.H., 1968, Pentland‘s tinamou in Argentina (Aves: Tinamidae): Proceedings of the Biological Society of Washington, v. 81, p. 485 - 490
- Banks, R.C.; Laybourne, R.C., 1968, The red-whiskered bulbul in Florida: Auk, v. 85, no. 1,
- Baysinger, E.B., 1968, Swallow-tailed kite over Cayuga Lake: Kingbird, v. 18, no. 1,
- Bormann, F. H.; Likens, G. E.; Fisher, D. W.; Pierce, R. S., 1968, Nutrient loss accelerated by clear-cutting of a forest ecosystem: Science, v. 159, no. 3817, p. 882 - 884
- Bradley, W. H., 1968, Unmineralized fossil bacteria: A retraction: Science, v. 160, no. 3826,
- Brent, Dalrymple, G.; Moore, J. G., 1968, Argon-40: Excess in submarine pillow basalts from Kilauea Volcano, Hawaii: Science, v. 161, no. 3846, p. 1132 - 1135
- Bullock, G. L., 1968, The bacteriology of brook trout with tail rot: Progressive Fish-Culturist, v. 30, no. 1, p. 19 - 22
- Burress, R. M., 1968, Antimycin for controlling sunfish populations in ponds: Farm Pond Harvest, v. 2, no. 1,
- Cannon, H. L.; Hopps, H. C., 1968, Environmental geochemistry: Health and disease: Science, v. 162, no. 3855,
- Clark, D.R., Jr., 1968, Sixty-eighth Christmas bird count. 272. Southern Dorchester County, Md: Audubon Field Notes, v. 22, no. 2, p. 187 - 188
- Clark, J. R.; Appleman, D. E.; Papike, J. J., 1968, Bonding in eight ordered clinopyroxenes isostructural with diopside: Contributions to Mineralogy and Petrology, v. 20, no. 1, p. 81 - 85
- Clark, J. R.; Christ, C. L., 1968, Crystal Structure of Veatchite: Die Naturwissenschaften, v. 55, no. 12,
- Clayton, R. N.; Jones, B. F., 1968, Isotope studies of dolomite formation under sedimentary conditions: Geochimica et Cosmochimica Acta, v. 32, no. 4,
- Coon, N.C.; Locke, L.N., 1968, Aspergillosis in a bald eagle (Haliaeetus leucocephalus): Bulletin of the Wildlife Disease Association, v. 4, no. 2,
- Cowardin, L. M.; Bartonek, J. C., 1968, Trumpeter swan in Kidder County, North Dakota: Prairie Naturalist, v. 1, no. 1,
- Dahl, Frederick H., 1968, A surface tow net for collection of parasitic-phase sea lampreys: Progressive Fish-Culturist, v. 30, no. 3, p. 183 - 184
- Dalrymple, G. B.; Cox, A., 1968, Palaeomagnetism, Potassium-argon ages and petrology of some volcanic rocks: Nature, v. 217, no. 5126, p. 323 - 326
- Dane, C. W., 1968, Age determination of blue-winged teal: Journal of Wildlife Management, v. 32, no. 2, p. 267 - 274
- Dane, C. W.; Duebbert, H. F., 1968, Specimen records of greater scaup: Prairie Naturalist, v. 1, no. 1,
- Devine, T.; Peterle, T.J., 1968, Possible differentiation of natal areas of North American waterfowl by neutron activation analysis: Journal of Wildlife Management, v. 32, no. 2, p. 274 - 279
- Dindal, D.L.; Peterle, T.J., 1968, Wing and body tissue relationships of DDT and metabolite residues in mallard and lesser scaup ducks: Bulletin of Environmental Contamination and Toxicology, v. 3, no. 1, p. 37 - 48
- Donald, Eberlein, G.; Christ, C. L., 1968, Chemical potential of water from measurements of optic axial angle of zeolites: Science, v. 162, no. 3858,
- Doty, H. A., 1968, Nesting baskets for ducks: Outdoor American, v. 33, no. 10,
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- Dryer, William R.; King, George R., 1968, Rehabilitation of lake trout in the Apostle Islands region of Lake Superior: Journal of the Fisheries Research Board of Canada, v. 25, no. 7, p. 1377 - 1403
- Duebbert, H. F., 1968, White-faced ibis in McIntosh County, North Dakota: Prairie Naturalist, v. 1, no. 1,
- Duebbert, H. F., 1968, Two female mallards incubating on one nest: Wilson Bulletin, v. 80, no. 1,
- Duebbert, H. F., 1968, Breeding birds in the Roscoe, South Dakota area in 1967: South Dakota Bird Notes, v. 20, no. 2, p. 28 - 29
- Edsall, Thomas A.; Saxon, Margaret I., 1968, Two hermaphroditic alewives from Lake Michigan: Copeia, v. 1968, no. 2, p. 406 - 407
- Elsasser, W. M.; Von Huene, R.; Scholl, D. W.; Ridlon, J. B., 1968, Submarine trenches and deformation: Science, v. 160, no. 3831,
- Emery, K. O.; Kaye, C. A.; Loring, D. H.; Nota, D. J. G., 1968, European cretaceous flints on the coast of North America: Science, v. 160, no. 3833, p. 1225 - 1228
- Engel, A. E. J.; Nagy, B.; Nagy, L. A.; Engel, C. G.; Kremp, G. O. W.; Drew, C. M., 1968, Alga-like forms in onverwacht series, South Africa: Oldest recognized lifelike forms on earth: Science, v. 161, no. 3845, p. 1005 - 1008
- Erickson, R.C., 1968, A Federal research program for endangered wildlife: Transactions of the North American Wildlife and Natural Resources Conference, v. 33, p. 418 - 433
- Eugster, H. P.; Jones, B. F., 1968, Gels composed of sodium-aluminum silicate, Lake Magadi, Kenya: Science, v. 161, no. 3837, p. 160 - 163
- Evans, B. W.; Moore, J. G., 1968, Mineralogy as a function of depth in the prehistoric Makaopuhi tholeiitic lava lake, Hawaii: Contributions to Mineralogy and Petrology, v. 17, no. 2, p. 85 - 115
- Fankhauser, D.P., 1968, A comparison of migration between blackbirds and starlings: Wilson Bulletin, v. 80, no. 2, p. 225 - 227
- Fisher, R. L.; Engel, C. G.; Hilde, T. W. C., 1968, Basalts dredged from the Amirante ridge, western Indian ocean: Deep-Sea Research and Oceanographic Abstracts, v. 15, no. 5,
- Friedman, I., 1968, Hydration rind dates rhyolite flows: Science, v. 159, no. 3817, p. 878 - 880
- Friedman, I.; Evans, C.; Meighan, C. W.; Foote, L. J.; Aiello, P. V.; Park, J. H.; Baron, S., 1968, Herpetic keratoconjunctivitis: Therapy with synthetic double-stranded RNA: Science, v. 162, no. 3855, p. 811 - 813
- Gottfried, D.; Greenland, L. P.; Campbell, E. Y., 1968, Variation of Nb-Ta, Zr-Hf, Th-U and K-Cs in two diabase-granophyre suites: Geochimica et Cosmochimica Acta, v. 32, no. 9, p. 925 - 947
- Grandy, J.W.; Locke, L.N.; Bagley, G.E., 1968, Relative toxicity of lead and five proposed substitute shot types to pen-reared mallards: Journal of Wildlife Management, v. 32, no. 3, p. 483 - 488
- Greenland, L. P., 1968, Simultaneous determination of tantalum and hafnium in silicates by neutron activation analysis: Analytica Chimica Acta, v. 42, no. C, p. 365 - 370
- Greenland, L. P.; Gottfried, D.; Tilling, R. I., 1968, Distribution of manganese between coexisting biotite and hornblende in plutonic rocks: Geochimica et Cosmochimica Acta, v. 32, no. 11, p. 1149 - 1163
- Halvorson, W. L., 1968, Environmental influence on the pattern of plant communities along the North Rim of the Grand Canyon: Journal of the Arizona-Nevada Academy of Science, v. 5,
- Hambright, W. P.; Thorpe, A. N.; Alexander, C. C., 1968, Magnetic susceptibilities of metalloporphyrins: Journal of Inorganic and Nuclear Chemistry, v. 30, no. 11, p. 3139 - 3142
- Hapfty, J.; Riley, L. B., 1968, Determination of palladium, platinum and rhodium in geologic materials by fire assay and emission spectrography: Talanta, v. 15, no. 1, p. 111 - 117
- Harke, D.T.; Stickley, A.R., 1968, Sensitive resettable odometer aids roadside census of red-winged blackbirds: Journal of Wildlife Management, v. 32, no. 3, p. 635 - 636
- Healy, J. H.; Rubey, W. W.; Griggs, D. T.; Raleigh, C. B., 1968, The Denver earthquakes: Science, v. 161, no. 3848, p. 1301 - 1310
- Hearn, Jr. , B. C., 1968, Diatremes with kimberlitic affinities in North-Central Montana: Science, v. 159, no. 3815, p. 622 - 625
- Herman, C .M.; Kocan, R.M.; Snyder, E.L.; Knisley, J.O., Jr., 1968, Plasmodium elongatum from a penguin: Bulletin of the Wildlife Disease Association, v. 4, no. 4,
- Herman, C.M., 1968, Blood parasites in North American waterfowl: Transactions of the North American Wildlife and Natural Resources Conference, v. 33, p. 348 - 359
- Herman, R. L., 1968, Fish furunculosis, 1952-1966: Transactions of the American Fisheries Society, v. 97, no. 3, p. 221 - 230
- Hickey, J.J.; Anderson, D.W., 1968, Chlorinated hydrocarbons and eggshell changes in raptorial and fish-eating birds: Science, v. 162, no. 3850, p. 271 - 273
- Hoffman, G. L., 1968, Current status of whirling disease in salmonids in U.S: American Fishes and U.S. Trout News, v. November-December, p. 10, 12, 19 - 20
- Hoffman, G. L., 1968, In memoriam: Ralph Vanderwort Bangham, 1895-1966: Journal of Parasitology, v. 54, no. 5,
- Hogman, Walter J., 1968, Annulus formation on scales of four species of coregonids reared under artificial conditions: Journal of the Fisheries Research Board of Canada, v. 25, no. 10, p. 2111 - 2122
- Hood, L.L., 1968, The 1968 annual meeting of IBBA: IBBA [Inland Bird Banding Association] News, v. 40, no. 4, p. 123 - 124
- Hood, L.L., 1968, Is this your schedule?: IBBA [Inland Bird Banding Association] News, v. 40, no. 6, p. 206 - 209
- Hood, L.L., 1968, 1967 annual Canadian banding report: IBBA [Inland Bird Banding Association] News, v. 40, no. 4, p. 144 - 147
- Hostetler, P. B.; Christ, C. L., 1968, Studies in the system MgO-SiO2-CO2-H2O(I): The activity-product constant of chrysotile: Geochimica et Cosmochimica Acta, v. 32, no. 5, p. 485 - 497
- Hunn, J. B.; Schoettger, R. A.; Willford, W. A., 1968, Turnover and urinary excretion of free and acetylated MS-222 rainbow trout, Salmo gairdneri: Journal of the Fisheries Research Board of Canada, v. 25, no. 1, p. 25 - 31
- Hunn, Joseph B.; Schoettger, Richard A.; Whealdon, Everett W., 1968, Observations on handling and maintenance of bioassay fish: Progressive Fish-Culturist, v. 30, no. 3, p. 164 - 167
- Kadlec, J.A.; Drury, W.H., 1968, Structure of the New England herring gull population: Ecology, v. 49, no. 4, p. 644 - 676
- Kadlec, J.A.; Drury, W.H., 1968, Aerial estimation of the size of gull breeding colonies: Journal of Wildlife Management, v. 32, no. 2, p. 287 - 293
- Kepler, C.B., 1968, [Book review] ‘Hawaii‘s birds,‘ by Hawaii Audubon Society: Wilson Bulletin, v. 80, no. 4,
- Kerns, Jr. , R. L.; Mankin, C. J., 1968, Structural charge site influence on the interlayer hydration of expandable three-sheet clay minerals: Clays and Clay Minerals, v. 16, no. 1, p. 73 - 81
- Kocan, R .M.; Barrow, J.H., Jr., 1968, Observations on the development and significance of Leucocytozoon simondi megaloschizonts and a technique for their isolation: Bulletin of the Wildlife Disease Association, v. 4, no. 3, p. 94 - 95
- Kocan, R.M., 1968, The canvasback duck (Aythya valisineria): A new host for Plasmodium: Bulletin of the Wildlife Disease Association, v. 4, no. 3, p. 86 - 87
- Kocan, R.M., 1968, Probable origin of ciliates found in oral swabbing of doves and pigeons: Journal of Parasitology, v. 54, no. 5,
- Kocan, R.M., 1968, Anemia and mechanism of erythrocyte destruction in ducks with acute Leucocytozoon infections: Journal of Protozoology, v. 15, no. 3, p. 455 - 462
- Kreitzer, J.F.; Spann, J.W., 1968, Mortality among bobwhites confined to a heptachlor contaminated environment: Journal of Wildlife Management, v. 32, no. 4, p. 874 - 878
- Lanphere, M. A., 1968, SrRbK and Sr isotopic relationships in ultramafic rocks, southeastern Alaska: Earth and Planetary Science Letters, v. 4, no. 3, p. 185 - 190
- Lee, F. B.; Kruse, A. D.; Thornsberry, W. H., 1968, New fashions for the duck marsh: Naturalist, v. 19, no. 1, p. 27 - 32
- Lee, W. H. K., 1968, Effects of selective fusion on the thermal history of the Moon, Mars, and Venus: Earth and Planetary Science Letters, v. 4, no. 4, p. 277 - 283
- Lee, W. H. K., 1968, Effects of selective fusion on the thermal history of the earth‘s mantle: Earth and Planetary Science Letters, v. 4, no. 4, p. 270 - 276
- Locke, L.N.; Leibovitz, L.; Herman, C.M.; Walker, J.W., 1968, Duck viral enteritis (duck plague) in North American Waterfowl: Proceedings of the Annual Conference of the Southeastern Association of Game and Fish Commissioners, v. 22, p. 96 - 98
- Lovering, J. F.; Tatsumoto, M., 1968, Lead isotopes and the origin of granulite and eclogite inclusions in deep-seated pipes: Earth and Planetary Science Letters, v. 4, no. 5, p. 350 - 356
- Manion, Patrick J., 1968, Production of sea lamprey larvae from nests in two Lake Superior streams: Transactions of the American Fisheries Society, v. 97, no. 4, p. 484 - 486
- Marinenko, J.; May, I., 1968, Fluorometric determination of gold in rocks with rhodamine B: Analytical Chemistry, v. 40, no. 7, p. 1137 - 1139
- Martinson, R.K.; Hawkins, A.S., 1968, Lack of association among duck broodmates during migration and wintering: Auk, v. 85, no. 4, p. 684 - 686
- McLain, Alberton; Dahl, Frederick H., 1968, An electric beam trawl for the capture of larval lampreys: Transactions of the American Fisheries Society, v. 97, no. 3, p. 289 - 293
- Meanley, B., 1968, Yellow-headed blackbird at the Patuxent Wildlife Research Center: Atlantic Naturalist, v. 23, no. 1,
- Meanley, B., 1968, Singing behavior of the Swainson‘s warbler: Wilson Bulletin, v. 80, no. 1, p. 72 - 77
- Meanley, B., 1968, Notes on Dismal Swamp plants: Atlantic Naturalist, v. 23, no. 2, p. 78 - 82
- Meanley, B., 1968, Birds of the Great Dismal Swamp: Atlantic Naturalist, v. 23, no. 3, p. 141 - 142
- Menzie, C.M.; Prouty, R.M., 1968, Gas chromatographic analysis of gamma-BHC, the cyclodienes, and DDT analogs: Journal of Chromatographic Science, v. 6, no. 1,
- Moore, H. J.; Baldwin, R. B., 1968, Ranger VIII and gravity scaling of lunar craters: Science, v. 159, no. 3812, p. 333 - 334
- Mulhern, B.M., 1968, An improved method for the separation and removal of organochlorine insecticides from thin-layer plates: Journal of Chromatography, v. 34, no. 4, p. 556 - 558
- Mussett, A. E.; Brent, Dalrymple, G., 1968, An investigation of the source of air Ar contamination in KAr dating: Earth and Planetary Science Letters, v. 4, no. 6, p. 422 - 426
- Nelson, C. H.; Kulm, L. D.; Carlson, P. R.; Duncan, J. R., 1968, Mazama ash in the Northeastern Pacific: Science, v. 161, no. 3836, p. 47 - 49
- Nelson, H. K., 1968, [Book review] Waterfowl--their biology and natural history, by Paul A. Johnsgard: Atlantic Naturalist, v. 23, no. 4, p. 230 - 232
- Olsen, S. J., 1968, Miocene vertebrates and North Florida shorelines: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 5, no. 1, p. 127 - 134
- Osmond, J. K.; Rydell, H. S.; Kaufman, M. I., 1968, Uranium disequilibrium in groundwater: An isotope dilution approach in hydrologic investigations: Science, v. 162, no. 3857, p. 997 - 999
- Plunkett, R.L.; Robbins, C.S., 1968, A program for the preservation of documentary photographs: Audubon Field Notes, v. 22, no. 1, p. 45 - 47
- Radulescu, I.; Vasiliu, D. C.; Ilie, E.; Snieszko, S. F., 1968, Thyroid hyperplasia of the eastern brook trout, Salvelinus fontinalis in Romania: Transactions of the American Fisheries Society, v. 97, no. 4, p. 486 - 488
- Rahrer, Jerold F., 1968, Movements of adult lake trout in Lake Superior: Transactions of the American Fisheries Society, v. 97, no. 4, p. 481 - 484
- Reichel, W.L.; Addy, C.E., 1968, A survey of chlorinated pesticide residues in black duck eggs: Bulletin of Environmental Contamination and Toxicology, v. 3, no. 3, p. 174 - 179
- Robbins, C.S., 1968, [Book review] Radar Ornithology, by Eric Eastwood: Atlantic Naturalist, v. 23, no. 4, p. 234 - 235
- Robbins, C.S., 1968, The season - October, November, December, 1967: Maryland Birdlife, v. 24, no. 1, p. 22 - 29
- Robbins, C.S., 1968, The season - July, August, September, 1968: Maryland Birdlife, v. 24, no. 4, p. 102 - 108
- Robbins, C.S., 1968, The season - January, February, March, 1968: Maryland Birdlife, v. 24, no. 2, p. 44 - 47
- Robbins, C.S., 1968, The season - April, May, June, 1968: Maryland Birdlife, v. 24, no. 3, p. 73 - 79
- Robbins, C.S., 1968, Net hours: A common denominator for the study of bird populations by banders: EBBA [Eastern Bird Banding Association] News, v. 31, no. 1, p. 31 - 35
- Robbins, C.S., 1968, Editorial: Maryland Birdlife, v. 24, no. 3,
- Roberson, C. E.; Hem, J. D., 1968, Activity product constant of cryolite at 25??C and one atmosphere using selective-ion electrodes to estimate sodium and fluoride activities: Geochimica et Cosmochimica Acta, v. 32, no. 12, p. 1343 - 1351
- Ross, M.; Papike, J. J.; Weiblen, P. W., 1968, Exsolution in clinoamphiboles: Science, v. 159, no. 3819, p. 1099 - 1102
- Rossmann, D.; Scott, N. J., Jr., 1968, Identity of Helicops wettsteini (Serpentes: Colubridae): Herpetologica, v. 24, no. 3, p. 262 - 263
- Sass, J. H.; Munroe, R. J.; Lachenbruch, A. H., 1968, Measurement of geothermal flux through poorly consolidated sediments: Earth and Planetary Science Letters, v. 4, no. 4, p. 293 - 298
- Scholl, D. W.; Buffington, E. C.; Hopkins, D. M., 1968, Geologic history of the continental margin of North America in the Bering Sea: Marine Geology, v. 6, no. 4, p. 297 - 330
- Scholl, D. W.; Von Huene, R.; Ridlon, J. B., 1968, Spreading of the ocean floor: Undeformed sediments in the peru-chile trench: Science, v. 159, no. 3817, p. 869 - 871
- Scott, J. H.; Lee, F. T.; Carroll, R. D.; Robinson, C. S., 1968, The relationship of geophysical measurements to engineering and construction parameters in the Straight Creek Tunnel pilot bore, Colorado: International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, v. 5, no. 1, p. 1 - 30
- Senftle, F. E.; Thorpe, A. N., 1968, Van vleck paramagnetism in orthorhombic TiO2 (Brookite): Physical Review, v. 175, no. 3, p. 1144 - 1146
- Sibley, F.C.; Mallette, R.D.; Borneman, J.C.; Dalen, P.S., 1968, Third cooperative survey of the California condor: California Fish and Game, v. 54, no. 4, p. 297 - 303
- Simon, F. O.; Millard, Jr. , H. T., 1968, Determination of gold in rocks by neutron activation analysis using fire-assay preconcentration: Analytical Chemistry, v. 40, no. 7, p. 1150 - 1152
- Simpson, G. G.; Sohn, I. G., 1968, Premature citations of zoological nomina: Science, v. 161, no. 3836, p. 75 - 76
- Skougstad, M. W.; Scarbro, Jr. , G. F., 1968, Water sample filtration unit: Environmental Science and Technology, v. 2, no. 4, p. 298 - 301
- Slack, K. V.; Feltz, H. R., 1968, Tree leaf control on low flow water quality in a small Virginia stream: Environmental Science and Technology, v. 2, no. 2, p. 126 - 131
- Smith, Allen J.; Howell, John H.; Piavis, George W., 1968, Comparative embryology of five species of lampreys of the upper Great Lakes: Copeia, v. 1968, no. 3, p. 461 - 469
- Smith, P. B.; Emiliani, C., 1968, Oxygen-isotope analysis of recent tropical pacific benthonic foraminifera: Science, v. 160, no. 3834, p. 1335 - 1336
- Smith, P. J., 1968, Pre-gilbertian conceptions of terrestrial magnetism: Tectonophysics, v. 6, no. 6, p. 499 - 510
- Smith, P. J., 1968, Paleomagnetism and the compositions of highly-oxidised iron-titanium oxides in basalts: Physics of the Earth and Planetary Interiors, v. 1, no. 2, p. 88 - 92
- Smith, Stanford H., 1968, Species succession and fishery exploitation in the Great Lakes: Journal of the Fisheries Research Board of Canada, v. 25, no. 4, p. 667 - 693
- Smith, Stanford H., 1968, The alewife: Limnos, v. 1, no. 2, p. 12 - 20
- Snieszko, S. F., 1968, Report of the Fish Disease Committee of the American Fisheries Society for the year 1967-1968: Rivista Italiana Di Piscicoltura e Ittiopatologia, v. 11, no. 4, p. 75 - 79
- Sohn, I. G., 1968, Premature citations and zoological nomenclature: Science, v. 159, no. 3814, p. 441 - 442
- Stowers, J.F.; Harke, D .T.; Stickley, A.R., 1968, Vegetation used for nesting by the red-winged blackbird in Florida: Wilson Bulletin, v. 80, no. 3, p. 320 - 324
- Sykes, P.W., Jr., 1968, Sixty-eighth Christmas bird count. 287. Little Creek, Va: Audubon Field Notes, v. 22, no. 2, p. 194 - 195
- Sykes, P.W., Jr., 1968, Sixty-eighth Christmas bird count. 276. Back Bay National Wildlife Refuge, Va: Audubon Field Notes, v. 22, no. 2, p. 189 - 190
- Sykes, P.W., Jr.; Robertson, W.B., 1968, [Letter to the Editor] Kites in the Everglades: Nature, v. 220, no. 5170, p. 939 - 940
- Tarshis, I.B., 1968, Use of fabrics in streams to collect black fly larvae: Annals of the Entomological Society of America, v. 61, no. 4, p. 960 - 961
- Tarshis, I.B., 1968, Collecting and rearing black flies: Annals of the Entomological Society of America, v. 61, no. 5, p. 1072 - 1083
- Thomas, Jr. , J.; Bohor, B. F., 1968, Surface area of montmorillonite from the dynamic sorption of nitrogen and carbon dioxide: Clays and Clay Minerals, v. 16, no. 1, p. 83 - 91
- Tien, P. -L., 1968, Differentiation of pleistocene deposits in northeastern Kansas by clay minerals: Clays and Clay Minerals, v. 16, no. 1, p. 99 - 107
- Tomlinson, R. E., 1968, Reward banding to determine reporting rate of recovered mourning dove bands: Journal of Wildlife Management, v. 32, no. 1, p. 6 - 11
- Truesdell, A. H., 1968, Activity coefficients of aqueous sodium chloride from 15?? to 50??C measured with a glass electrode: Science, v. 161, no. 3844, p. 884 - 886
- Truesdell, A. H.; Hostetler, P. B., 1968, Dissociation constants of KSO4- from 10??-50??C: Geochimica et Cosmochimica Acta, v. 32, no. 9, p. 1019 - 1022
- Van Velzen, W.T., 1968, Slate-colored junco recovery from Michigan: Maryland Birdlife, v. 24, no. 3,
- Van Velzen, W.T., 1968, Nest records of the brown thrasher in Maryland: Maryland Birdlife, v. 24, no. 1, p. 3 - 9
- Van Velzen, W.T., 1968, Report of the state-wide bird count, May 4, 1968: Maryland Birdlife, v. 24, no. 2, p. 35 - 43
- Van Velzen, W.T., 1968, Black-throated sparrow in Kiowa County, Oklahoma: Bulletin of the Oklahoma Ornithological Society, v. 1, no. 3,
- Van Velzen, W.T., 1968, Migration of a downy woodpecker: Maryland Birdlife, v. 24, no. 4,
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