308 EDGAR ALLEN 
TABLE 1 
Animals examined histologically arranged in order of progressive phases of the 
oestrous cycle as diagnosed by vaginal smears and microscopical exami- 
nation of the genital organs. (For key to table, see footnote.)? 
& a) j Zz & & 
eects: oe Ey ae Be 
Pat Be Aa I Pe Gr: 
uals ro de pe | aa 524 
@2!| 6 | a&s oa ae Bg 2 BE6 0 
pale cl Sch esl “tcl Si ues ai : a 
Basin ilvetie pale a hey eeeneaa) olaeae a 
1 | .26 |, -5-6.| Gone 2nd-3rd | 2+ 30-50 hrs. | ONE, OP | D 
#2| 241 56 | Gone 3rd 3 3+ days | INE, 3P | D 
3 8| 5-7] Gone 3rd+ 4 3+ days | INE, 2P | D 
A |» 1) ), 56 1| Gone None re ONH,1P | D 
5 | 13) 3-5 | Gone None 5 ONE, 1P isp 
6} 15) 5-6 | Gone None ONE, OP | D 
7 6 Gone None ? ONE, OP | D 
8 3 | 7-10| Before for- | 3rd 3 0C, INE.) 2 
mation 
x9 | 10} 12-13) Granular, no} None 34 3+ days | INE, OP | P 
herny 
10 | 12 | 11-13} Under 24 None 34 3+ days | ONE, OP | P 
11 | 14] 11-13] Under 2-4 None ? 0C, INE JP 
12 9] g-10| Under 3-5 None 5 0C, 1NE | P 
13 | 23] 9-10| Under 3-4 *None | None} * 1C; INE ee 
14 1 | 10-11} Superficial None 5 1C O 
#15 4 | 98-32) Superficial None 5 1C O 
16 2 None 5+ 10 O 
17 | 16 | 12-13] Superficial None 7-8 1C O 
18 | 21] 9-12) Superficial 1st-2nd | 1 3- 7 hrs. | 3C, Bu M; 
#19 | 19 | 11-12] Superficial 2nd 2 30-35 hrs. | 3C, Bu Mi 
20 | 18 | 10-12} Superficial *None None| * 2C, Bu Mi 
21 7 | 46 | In lumen 2nd-3rd | 2 20-40 hrs. | 2C, Bu Mi 
22} 20] 6-7 | In lumen 2nd-3rd | 2 40-50 hrs. | 8C, Bu Mi 
23 | 25} 4-7] In lumen 3rd 3 50-60 hrs. | 2C, 1P M2 
24 | 17| 7-9 | In lumen 3rd 3 60-70 hrs. | 1C, 1P Me 
25 | 22| 7-8] In lumen 3rd 3 50-60 hrs. | 2C, 2P Me 
*26 | 27 | 6-8 | In lumen 2nd-3rd | 2 & 3} 30-50 hrs. | 1C, 3P M2 
27 5 | 5-6] In lumen 3rd 3 72+ hrs. | 1C, 2P M2 
2 Key to table 1. Column 1 represents the progressive order of the series 
beginning with an early phase of the dioestrous stage. #, Animals described 
in detail as typical of the five stages of the cycle; * (in columns 5 and 7), ovula- 
tion not spontaneous; 0, 1, 2, $ (in column 8), represent relative numbers of cell 
types; C, cornified epithelial cells; NE, nucleated epithelial cells; P, polymorpho- 
nuclear leucocytes. 
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