Table of the Periods of Gestation of the Various Species of the Genus Bos
| Periods | |
| American Bison. | 270 days.—Zool. Proc., 1849. |
| European Bison. | Between 9 and 10 months. |
| Gayal (Domestic) | Over 10 months |
| Gyall | 11 months |
| Indian Buffalo | 10 months 10 days. |
| Gaur | 12 months |
| Domestic Ox. | 270 days |
| Manilla Buffalo. | 340 days |
| Arnee | 12 months |
| Cape Buffalo | 12 months |
| Zebu, or Brahmin Cow | 300 days |
| Musk Ox | 9 months |
To supply the deficiencies in the foregoing Tables, the results of original observations are respectfully solicited. Address the Author or Publisher.