352 
PROFESSOR ARTHUR ROBINSON ON 
Table X. — Ferrets and Ferret-Polecat Hybrids Inseminated at the First (Estrus of the Season. 
Time of Death after Insemination oyer 96 and under 121 hours. 
Specimen, 
Weight in 
Ounces. 
Number of 
Hours after 
Insemination. 
Date 
of 
Death. 
Size of 
Ovary in 
mm. 3 
Size of 
largest 
Follicle 
in mm. 3 
Number of 
Follicles of 
largest 
size. 
Notes. 
1. F. M/04 G 8 Mann. \ 
2. F. 1-2/04 G 10 Z. / 
3. F. 1-3/04 G 12 Mann.\ 
4. F. 1-4/04 G 14 Z. / 
5. F. 1-5/04 G 17 Mann. / 
6. F. 1-6/04 G 19 Z. / 
1 
7. F. 1-7/04 G 21 Mann. \ 
8. F. 1-8/04 G 23 Z. / 
9. P.Z.R. 1/14 \ 
10. P.FI.L. 1/14/ ' 
11. P.Mann.R. 1-2/14 A 
12. P.Len.L. 1-2/14 / • 
~ » 
116^ 
1174 
1194 
120 
7/5/04 
23/4/04 
26/4/14 
27- 677 672 400 
33- 409 950 000 
20- 235 807 190 
30-706 250 000 
43-499 531 250 
34- 420 156 250 
23-326 875 000 
28- 411 175 000 
30-188 276 250 
43-157 625 000 
21- 745 899 000 
27-522 450 000 
1- 355 270 400 
2- 193 408 000 
3- 171571 200 
4- 177 958 400 
2-195 726 400 
1- 862 784 000 
2- 406 487 200 
1-693 094 400 
1- 675 696 000 
2- 462 140 800 
■656 064 000 
•907 200 000 
4 all normal 
4 
4 
6 
4 
5 
4 
6 
5 „ 
5 „ 
8 
3 
- 
'The ova Were in the middle third of the 
oviduct in the pronuclear stage. 
The ruptured follicles were distended. 
In ovary G 8 there was one unruptured 
degenerate follicle of 1-336 500 000 
mm. 3 which contained an ovum in 
the first spindle stage. 
In the ovary G 10 there were two un- 
ruptured degenerate follicles of 
■111 825 000 mm. 3 
The side to which each ovary belonged 
is uncertain. 
'The ova were in the cranial part of 
the lower third of the oviduct, some 
in the 8- and some in the 12-cell 
stage. 
The ruptured follicles were distended. 
In ovary G 12 were three unruptured 
degenerate follicles of -115 153 920 
mm. 3 
In ovary G 14 was one unruptured de- 
generate follicle of -321 235 200 mm. 3 
The side to which each ovary belonged 
is uncertain. 
-The ova were in the caudal third of 
the oviduct in the morula stage of 
about 20 cells. 
The ruptured follicles were distended. 
In ovary G 17 Were two unruptured de- 
generate follicles of -619 718 400 mm. 3 
In ovary G 19 Was one .unruptured 
degenerate follicle of 4-865 112 000 
mm. 3 , containing a degenerate ovary, 
and With the follicle wall becoming 
luteal. 
The side to which each ovary belonged 
is uncertain. 
t The ova were in the caudal third of the 
oviduct in the morula stage With 
many cells. 
The ruptured follicles Were redistended. 
In the right ovary Was one unruptured 
degenerate follicle of -376 992 000 
mm. 3 
In the left ovary were six unruptured de- 
generate follicles of -049 920 000 mm. 3 
The side to which each ovary belonged 
is uncertain. 
The ova were in the caudal third of the 
oviduct in the morula stage of 
about 20 cells. 
The ruptured follicles Were redistended. 
In the right ovary were four un- 
ruptured abnormal follicles of 
1-053 360 000 mm. 3 , with ova in the 
first spindle or first polar body stage. 
In the left ovary were five abnormal 
unruptured follicles of 1-591 200 000 
mm. 3 
/The ova Were in the caudal third of the 
oviduct in the morula or commenc- 
ing blastula stage. 
The ruptured follicles were redistended. 
In the right ovary were two un- 
ruptured degenerate follicles of 
■056 200 000 mm. 3 
In the left ovary were five un- 
ruptured degenerate follicles of 
. -076 608 000 mm. 3 
