20 
2 wapiti (Cervus canadensis), 2^^, June 22d, July 1st. 
1 red deer {Cervus elaphus), May 30tli. 
3 American bison (Bison hison), 2<^, 1^, May 3d and 21st, 
June 6tli. 
1 six-banded armadillo (Dasypus sexcindus), May 10th. 
3 robust kangaroos (Macropus robustus), August 22d, Octo- 
ber 7th, January 27th. 
1 vulpine phalanger (Trichosurus vulpecula), March 5th. 
2 grass parrakeets (Melopsittacus undulatas), October 24th. 
1 jungle fowl {Gallus hankiva), May 17th. 
13 golden pheasants (Chrysolophus pictus), May 19th, June 
24th. 
1 Amherst pheasant (C. amherstice), June 24th. 
33 common garter snakes {Eidcenia sirtalis), July 6th, Au- 
gust 7th and 15th. 
14 common water snakes ( Tropidonotus sipidon) , Seiptemher 
17th. 
8 Woodhouse's water snakes {T. s. transversus'^, September 
16th. 
10 Cyclops water snakes (T. cydopeum), August 1st. 
1 coach whip snake (Zamenis flagellum), April 12th. 
2 copperheads {Ancistrodon contortrix), September 20th. 
13 Poinsett's scaly lizards {Sceloporus p>oinsetti), June 25th. 
The variability of the breeding period induced by cap- 
tivity in many animals, is shown in this list by the European 
brown bear, which normally breeds early in the spring or 
late in the Avinter. The pair in the Gardens produced this 
year as late as July 25th ; last year the same female bred 
on January 16th, and in 1899 on January 19th. 
The axis deer of India also breeds indiscriminately in 
April and February. 
The birth of a six-banded armadillo in captivity is un- 
usual, and important observations upon the placenta of this 
species were made by Dr. H. C. Chapman.* 
* Proceedings Academy Natural Sciences of Philadelphia, 1901, page 
366, pi. XVIII. 
