s 

hg eae, ‘ a. Mf i We ; Natit 
New York AGRIOULTURAL EixpERIMENT STATION. 187 
the ordinary food. These hens gained in weight during the first 
‘period eleven ounces, and lost during the second period nine ounces. 
Although fewer eggs were laid by this lot the shells were lighter, 
being in the first period 8.12 per cent of the total weight of the eggs, 
and in the second period 6.18 per cent, while the shells of eggs laid 
by the lot having oyster shells formed 9.67 per cent and 9.50 per cent 
of the total weight of the eggs. : 
The egg shells contained 92.42 per cent carbonate of lime and the 
ash of the eggs exclusive of shell 4.96 per cent of calcium equal to 
12.4 per cent of carbonate. The eggs for the first period contained a 
1.01 per cent and those of the second period .98 per cent of ash. 
The data for these two periods are briefly stated in the following 
tables: Only two hens were used during the second period: 
Lot 2— Guass— First PEriop— Ten Days —Aprit NINTH TO 
Apri, NINETEENTH. 
Total |Water-free| Ashin | Galcium |Equivalent 
FOODS. substance | substance | food con- of calcium 
(Ca. ) 
consumed.|consumed.| sumed. | in food. acon) 
Grammes./| Grammes.| Grammes.| Grammes.| Grammes. — 






Mixed grain..........| 567.0 | 489.3 | 20.06 73 satis 
Wheat ........ veeves.| 1559.2 | 1858.1 | 28.93 68 1.71 ae 
Oabbage ©. ...5 ome eeoe., O 26.9 1.87 .08 VSM 
Water ....... fem toreo.0:.| 4.87 | 3.66 85 2.13 eas 
Total, except glass.) 2409.7*| 1874.3*| 54.52) 2.34) 6.86 
Glaseld.... eee at SBT. 6 ee oS 4081 40.65 | Tele 
PRODUCTS. | Total |Water-free ‘Ash Morse Equivalent 
substance.| substance. : (Ca). of CaCO,,. 
———— 
ae rae Grammes.| Grammes.| Grammes.| Grammes. 
Sette) A 128. PLN 'o ole oo RMA IEPA Sac a tat 
Shells ...... oR rarT et sec ay DCA ti, oat a 9.61 
Lining membranes. . scat age 6 OS Sieiiee rer .O1 
LEGO 



Eggs (whole interior) . ye ae 1.18 06 | 15 


* Exclusive of drinking water. 




