| BIOLOGICAL SCIENCES | |||||||
| Earlham and peer institutions - weighted ranks among 1,469 institutions | |||||||
| Institution Name | Weighted Rank: 1971-1980 | Weighted Rank: 1976-1985 | Weighted Rank: 1981-1990 | Weighted Rank: 1986-1995 | Weighted Rank: 1991-2000 | Weighted Rank: 1995 - 2004 | Weighted Rank: 1975 - 2004 |
| Reed College | 4 | 5 | 5 | 2 | 1 | 2 | 2 |
| Carleton College | 11 | 5 | |||||
| Kalamazoo College | 39 | 20 | 13 | 9 | 5 | 7 | 9 |
| Haverford College | 15 | 10 | |||||
| Earlham College | 9 | 15 | 28 | 13 | 8 | 8 | 12 |
| Grinnell College | 29 | 14 | 15 | 23 | 13 | 9 | 13 |
| Oberlin College | 32 | 25 | 20 | 24 | 21 | 19 | 16 |
| Lawrence University | 18 | 27 | |||||
| Bates College | 42 | 37 | |||||
| Beloit College | 25 | 43 | |||||
| Knox College | 28 | 45 | |||||
| Macalester College | 103 | 60 | 48 | 62 | 74 | 49 | 49 |
| Occidental College | 32 | 50 | |||||
| Centre College | 48 | 56 | |||||
| Hampshire College | 50 | 57 | |||||
| Whitman College | 73 | 61 | |||||
| St Olaf College | 51 | 62 | |||||
| Franklin and Marshall College | 56 | 67 | |||||
| College of Wooster, The | 41 | 86 | 82 | 90 | 107 | 81 | 74 |
| Colorado College | 69 | 77 | |||||
| Rhodes College | 75 | 86 | |||||
| Kenyon College | 59 | 82 | 88 | 91 | 145 | 136 | 96 |
| Trinity College (Hartford, CT) | 71 | 98 | |||||
| Hamilton College | 151 | 106 | |||||
| Connecticut College | 92 | 115 | |||||
| Lafayette College | 149 | 123 | |||||
| University of the South | 230 | 141 | |||||
| Denison University | 157 | 130 | 167 | 336 | 375 | 135 | 152 |
| Pitzer College | 189 | 178 | |||||
| Washington and Lee University | 162 | 207 | |||||
| Lake Forest College | 246 | 251 | |||||
| Guilford College | 304 | 255 | |||||
| Scripps College | 148 | 301 | |||||