| UNITED STATES |
| AK | UNIV OF ALASKA, ELMER E RASMUSON LIBR | v.24-(1954-) |
| AL | UNIV OF ALABAMA | |
| AZ | UNIV OF ARIZONA | 18-34(1930-1984) |
| CA | CALIFORNIA ACAD OF SCI | |
| CA | CALIFORNIA INST OF TECH | |
| CA | NATURAL HIST MUS FOUND, LA CNTY | |
| CA | SAN DIEGO NATURAL HIST MUS LIBR | |
| CA | SANTA BARBARA MUS OF NATURAL HIST | |
| CA | UNIV OF CALIFORNIA, BERKELEY | |
| CA | UNIV OF CALIFORNIA, DAVIS, SHIELDS LIBR | |
| CA | UNIV OF CALIFORNIA, LOS ANGELES | |
| CA | UNIV OF CALIFORNIA, UL | |
| CO | COLORADO STATE UNIV | |
| CO | DENVER MUS OF NATURE & SCIENCE | v.21-23(1944-1953) |
| CO | UNIV OF COLORADO AT BOULDER | |
| CT | YALE UNIV LIBR | |
| DC | LIBRARY OF CONGRESS | |
| DC | SMITHSONIAN INSTITUTION | |
| DC | US DEPT OF THE INTERIOR, NATURAL RES | |
| FL | FISH & WILDLIFE RES INST | 30-(1980-) |
| FL | HARBOR BR OCEANOGRAPHIC INST | 29-31(1979-1981) |
| FL | UNIV OF FLORIDA | 18-(1931-) |
| GA | UNIV OF GEORGIA | v.30-v.41 |
| IA | UNIV OF IOWA LIBR | |
| IA | IOWA STATE UNIV | |
| IL | CENTER FOR RES LIBR | 18-23(1931/1932-1953/... |
| IL | FIELD MUS | |
| IL | NORTHWESTERN UNIV | |
| IL | UNIV OF ILLINOIS | Local holdings availa... |
| IN | INDIANA STATE LIBR | 18-(1930/1931-) |
| IN | UNIV OF NOTRE DAME | v.18-v.26(1930/1934-1... |
| KS | KANSAS STATE UNIV | |
| KS | UNIV OF KANSAS | v.35-(1985-) |
| KY | UNIV OF KENTUCKY LIBR | v.18-v.22(1930/1931-1... |
| KY | UNIV OF LOUISVILLE | v.23-v.40(1950/1951-1... |
| LA | LOUISIANA STATE UNIV | |
| MA | CLARK UNIV | 18-21(1930/1931-1946) |
| MA | HARVARD UNIV | |
| MA | HARVARD UNIV, HARVARD COL LIBR | |
| MA | MARINE BIOLOGICAL LAB/WOODS HOLE OCEANOG | v.18-v.42(1931-2002) |
| MA | UNIV OF MASSACHUSETTS AMHERST | 19-20(1934-1942) |
| MD | JOHNS HOPKINS UNIV | |
| MD | NATIONAL AGR LIBR | |
| MD | NATIONAL LIBR OF MED | |
| MD | NATIONAL OCEANIC & ATMOSPHERIC ADMIN | |
| ME | UNIV OF MAINE AT ORONO | |
| MI | MICHIGAN STATE UNIV | 24-(1954-) |
| MI | UNIV OF MICHIGAN LIBR | v.1-v.2,v.4-(1863/1866-) |
| MN | UNIV OF MINNESOTA, MINNEAPOLIS | V.18- (1930/1931- ... |
| MO | LINDA HALL LIBR | 18-(1930/1931-) |
| MO | MISSOURI BOTANICAL GARDEN | 18-24(1930-1958) |
| MO | UNIV OF MISSOURI, COLUMBIA | |
| MO | UNIV OF MISSOURI, ROLLA LIBR | 18-29(1930-1979) |
| MO | WASHINGTON UNIV | |
| MT | MONTANA STATE UNIV, MSU LIBR | |
| MT | UNIV OF MONTANA, MANSFIELD LIBR | v.18-(1930/1931-) |
| NC | NORTH CAROLINA STATE UNIV | |
| NC | UNIV OF N CAROLINA, CHAPEL HILL | |
| NE | UNIV OF NEBRASKA AT LINCOLN | v.18-(1930-) |
| NH | DARTMOUTH COL | |
| NJ | PRINCETON UNIV | |
| NY | AMERICAN MUS OF NATURAL HIST | 18-(1930/1931-) |
| NY | BUFFALO MUS OF SCI | 18-29(1930/1931-1977/... |
| NY | COLUMBIA UNIV | |
| NY | CORNELL UNIV | |
| NY | NEW YORK BOTANICAL GARDEN LIBR | v.18-(1930/1931-) |
| NY | NEW YORK PUB LIBR RES LIBR | |
| NY | NEW YORK STATE LIBR | |
| NY | SKIDMORE COL | |
| NY | STONY BROOK UNIV | 24-27(1959-1971) |
| NY | UNIV OF ROCHESTER | 18-(1930/1931-) |
| OH | CHEMICAL ABSTRACTS SERV | |
| OH | LLOYD LIBR & MUS | v.18-v.26(1930/1931-1... |
| OH | OBERLIN COL LIBR | |
| OH | OHIO HIST SOC | |
| OH | OHIOANA LIBR ASN | |
| OH | OHIO STATE UNIV, THE | Local holdings availa... |
| OH | UNIV OF CINCINNATI | |
| OK | UNIV OF OKLAHOMA | v.18-v.25 |
| OR | OREGON STATE UNIV, CORVALLIS | v.18-22,24,26(1930-19... |
| PA | ACADEMY OF NATURAL SCI | |
| PA | CARNEGIE LIBR OF PITTSBURGH | v.18-v.33(1931-1983) |
| PA | CARNEGIE MUS OF NATURAL HIST | 18-(1930-) |
| PA | LEHIGH UNIV | 18-20(1930/1931-1941/... |
| PA | PENNSYLVANIA STATE UNIV | |
| PA | UNIV OF PENNSYLVANIA | |
| RI | BROWN UNIV | |
| RI | PELL MARINE SCI LIBR | |
| SD | UNIV OF S DAKOTA | 21:3-(1944-) |
| TN | UNIV OF TENNESSEE | |
| TN | VANDERBILT UNIV LIBR | |
| TX | UNIV OF TEXAS AT AUSTIN | |
| TX | UNIV OF TEXAS, BROWNSVILLE | 27-37(1970-1987) |
| TX | UNIV OF TEXAS, MARINE SCI LIBR | V.28-V.31(1977-1981) |
| UT | BRIGHAM YOUNG UNIV LIBR | 27-31,32-(1970-) |
| UT | UNIV OF UTAH | v.20-v.25,v.26:no.1-v... |
| VA | UNIV OF VIRGINIA | |
| VA | US GEOL SURVEY, NAT CTR | |
| VT | UNIV OF VERMONT, BAILEY LIBR | |
| WA | UNIV OF WASHINGTON LIBR | |
| WA | WASHINGTON STATE UNIV | |
| WI | UNIV OF WISCONSIN, MADISON, GEN LIBR SYS | v.18-v.38(1930-1988) |
| WI | UNIV OF WISCONSIN, MILWAUKEE | |
| WV | WEST VIRGINIA UNIV LIBR | v.24-(1954/1955-) |
| WY | UNIV OF WYOMING LIBR | |