Jan. 
Jan. 
Jan. 
Nov. 
Nov. 
Feb. 
May 
March 16. 
Feb. 
March 18. 
April 27. 
April 
Jan. 
iFeb. 
March 
|Ovis Aries, Linn. (just born) ... 
.|\Camelus Dromedarius, Zinn. ... 
.|Sciurus vulgaris, Linn. 
.|Lepus cuniculus, Linn. ........ 1-150 to 1-92 
.|Mus decumanus, Zinn. 
.|Ditto, two-thirds grown 
.|Ditto 
.|Mus musculus, Linn. ....0.-..00. 
.|Ditto, three-fourths grown 
25. 
6. 
ride 
2. 
4, 
98 
Table (continued). 
Name of Animal. Size of Tubes. 
1-571 
1-120 to 1-75 
1-120 to 1-60 
ee eeeeee 
Spe 70." 1-46 to 1-42 
1-120 to 1-109 
1-155 to 1-120 
1-80 to 1-66 
1-120 to 1-86 
ate eeeeee 
ditto 
.|Ditto (blind sucking young one).|1-400 to 1-222 
5. 
Strix flammea, Zinn, ........- .».| 1-230 to 1-138 
Corvus frugilegus, Linn.......... 1-75 to 1-46 
State of Testes, &c. 
Tubes very small. 
Died of dropsy. Sperma- 
tozoa plentiful; some 
rudimentary iu cells, 
with corpuscles; mo- 
lecules scanty. 
A few spermatozoa. 
But few spermatozoa. 
Spermatozoa very abun- 
dant ; tubes large. 
No spermatozoa. 
Ditto. 
Spermatozoa abundant. 
A few free spermatozoa ; 
a great number imma- 
ture in cells; mole- 
cules pretty abundant. 
Died in confinement. 
Testis one-third of an 
inch long and one- 
tenth broad. 
Testis one inch long and 
three-fourths broad ; 
semen andanimalcules 
very abundant; no 
molecules. 
Sturnus vulgaris, Linn. ......... 1-250 to 1-166|Testis black, one-fifth of 
Philomela luscinia, Sw. ......... 1-75 to 1-60 
Sylvia Phragmitis, Bechst. ...... 1-68 
Fringilla domestica, Linn. ...... 1-333 to 1-222 
Stsrerwosandcesvenccse eeeceene 1-250 to 1-200 
1-166 to 1-109 
ereee et rere re reee ei eer eres! 
1-80 to 1-50 - 
an inch long and one- 
eighth broad; no sper- 
matozoa; molecules 
very abundant. 
Testis brownish white, 
three-fourths of an 
inch long and four- 
tenths broad; sperma- 
tozoa abundant; no 
molecules. 
Testis one-fourth of an 
inch long and one-fifth 
broad, containing a 
little black pigment ; 
spermatozoa abundant. 
Spermatozoa abundant; 
testis same size as the 
Nightingale’s. 
Testis one-twelfth of an 
inch in diameter; no 
spermatozoa. 
Testis one-twelfth of an 
inch in diameter; no 
spermatozoa; many 
molecules. 
Testis one-seventh of an 
inch long and one- 
tenth broad; nume- 
rous cells, about 1- 
