334 Mr. E. Emrys-Roberts. A Hurther [Apr 3, 
parative tabulative point of view. Since the percentage of salts, however, to 
the amount of egg-white is much the same for both conditions, it seems that 
one cannot ascribe the changes in reaction of the egg-white in the fertilised 
egg as being due to either a diminution of, or an excess in, the percentage of 
salts present. This has a bearing upon the influence of salts in the 
DAYS OF INCUBATION 
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DAYS OF INCUBATION 
The 0 Ash (0 Dred Froterd 
o UnlertiNZed EGGS. 
e SCUNMZed LOGS. 
The fo OF ASH - L9G -Wwilte 
oMRtErtiiZed LOGS. 
eftiNzed LGPS. 
YS OF INCUBATION 
DA DAYS OF INCUBATION 
Frehl tc TV VUWWMRXY Nn UMMwwM 
FehI TO WVVUWWKXY MM wWwww 
1 al a | 2 a a a eR RERESS SL 
ELDERS oes TOT Ne (aa eee ae 
65 ee ees sa ae 
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0 WUT LEA LOGS. 
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Té fo OF Walter 
oMMELINZED LGGS. 
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building up of certain proteids. It also suggests the inference that the 
water of the egg-white is removed at a much greater rate, for the purposes 
of the embryo’s nutrition, than either the salts or the proteid. 
What the composition of the*proteid of the egg-white in the fertilised egg 
is is not clear. Attempts to analyse it show it to be globulin, though by no 
means partaking of all the reactions of this class of substance. 
Experiments were conducted to ascertain the presence or absence of 
