8 
Journal of Agricultural Research 
Vol. XXI, No. i 
The peculiar feature of these curves is that the vaginal curve crosses 
the rectal at two points, besides meeting at another. The usual fall in 
temperature after watering and the rise in the afternoon are also shown. 
The highest rectal temperature obtained was 102.3 0 F. at 7.45 a. m., 
while the lowest was 101.45° at 3.18 p. m. The highest vaginal tem¬ 
perature obtained was 102° at 7.45 a. m. and 5.24 p. m., while the lowest 
was 101.4 0 at 8.27 a. m., 10.36 a. m., and 1.36 p. in. 
OBSERVATIONS ON DECEMBER I, 1919, WITH COW 885 
Observations on the rectal and vaginal temperatures were made at 
approximately i hour intervals from 8.06 a. m. to 11.30 a. m. and from 
1.30 p. m. to 4.30 p. m. The vaginal temperature was measured im¬ 
mediately after the rectal by the same thermometer. At 8.30 a. m. the 
cow drank 29.4 kgm. of water at 52 0 F. The cow was standing during 
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mo 
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aSggSt fro. 
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p M . 
Fig. 5.—Variations in body temperature of cow 886 on December 5, 1919, 7.45 a. m. to 5.24 p. m. At 7.45 
a. m. lying; 8 a. m. drank 6 kgm. of water at 54 0 F.; 8.27 a. m. standing; 9.06 a. m. and 9.42 a. m. 
lying; 10.36 a. m. immediately after getting up and defecating; 11.24 a. m. to 1.36 p. m. lying; 2.15 p. m. 
standing; 3.18 p. m. immediately after getting up and defecating; 3.42 p. m. to 5-24 P. m. standing; 5 
p. m to 5.24 p. m. eating. 
all readings. At 8.12 a. m., 10.12 a. m., and 2.30 p. m. the readings 
were taken immediately after defecation. The results are represented 
by figure 6. 
The peculiar feature of these curves is the very marked effect of the 
large quantity of water drunk. The vaginal is lower than the rectal 
curve and is almost parallel with it, meeting it, however, at two points. 
The usual rise in temperature in the afternoon is also shown. 
The highest rectal temperature obtained was 102.2 0 F. at 4.30 p. m., 
while the lowest was 100.2° at 10.12 a. m. The highest vaginal temper¬ 
ature obtained was 101.7 0 at 8.12 a. m., while the lowest was 100.2° 
at 10.12 a. m. 
OBSERVATIONS ON DECEMBER 2, 1919, WITH COW 885 
Readings of the rectal and vaginal temperatures were taken at approxi¬ 
mately 1-hour intervals from 7.48 a. m. to 10.45 a. m. and from 2 p. m. 
t° 5 - 3 ° P- 111 • The rectal and vaginal temperatures were measured at 
the same time with the two thermometers as for figures 2 and 5. At 
