120 
RAYMOND PEARL AND MAYNIE R. 
TABLE 2 
CURTIS 
Data showing the relative and absolute amounts of nitrogen in the albumen of eggs 
taken from different levels of the oviduct, and in normal laid eggs 
Z S 
Fe i a 
Si | eee | BER | Cee | sae 
LOCATION OF EGG IN OVIDUCT Es Zap Hae ZS Sy Hog 
HB me Re mon 
2 ae 3 aS fe ae oE< 
< aa 
e 5 B< E < a a< es Be 
At caudal end of albumen por- 
tion. No membrane. (Hen 
(30,05) Pre, hee eR ee eens ene cies 13.66 4.13 0.5635 
Mean of normal laid eggs of 
Samewhe nee yout ecae ee eee | 31.34 1.98 0.6188 
Difierences GATE ye eee —17.68 +2.15 | —0.0553 
Eniterinesisthmilisse eae eee eer 
Covered with membrane except 
for a little of cranial tip. (Hen 
SOZ Re Reta Soo eee 16.51 3.78 0.6233 
Mean of normal laid eggs of same, 
LOKeT TE ec ihc S pee ae ee, Seemed es, ee | 32.07 2.00 0.6381 
UMMM ER CMCE fae cca eee ee \—15.56 Eee sO 0148 
Entering isthmus. Covered with . 
membrane except for a little 
of cranial tip. (Hen168)...... 21.4015) 79.45 17.0036 3.04 0.6515 
Normal laid egg of same hen..... 38.4895) 87.44 33.6536 1.78 | 0.6860 
Difference: :+.-:.: Was oees oo ec —17.0880 —7.99 |—16.6500 +1.26 = 0.0345 
In upper part of isthmus. Mem- 
brane thin. (Hen 8008)........ 15.48 3.47 0.5372 
Mean of normal laid eggs of same 
| aYSNO Gy) Aca oee Aetie eeh eee eR TEM ae 31.27 2.06 0.6407 
Difference. ..... eee Src le 2) +1.41 | —0.1035 
In lower part of isthmus. (Hen 
SOMO) Serer wes rrtes- oer acute Re 15.48 3.30 0.5092 
Mean of normal laid eggs of same 
Giang eeeeriae:, weet ree Ae | 30.06 1.90 0.5894 
Difference cs sci int Boake ce| —14.63 +1.40 | —0.0802 
In lower part of isthmus. (Hen 
SOLS ree eee Geese cl 20.32 3.34 0.6756 
Mean of normal laid eggs of same 
Dene Mean Pere Revit: Sse | 36.05 Vlas) 0.6960 
Ditlerence ry savareite' ls oo —15.73 +1.45 | —0.0204 
13 Tn calculating the absolute amount of nitrogen in the normal laid eggs the 
mean albumen weight for the whole number of such eggs available for each hen 
has been used. 
