92 



Artificial Incubation. 



[may, 



J-/d.lC \Jl 



T T o fr* n i r» rr 

 -ClctlCIllUg, 



Place nf 



Machine. 



No. of Eggs. 



No. of 

 Fertile Eggs 

 7th day. 



No. of 

 Chickens 

 Hatched. 



Fertile 

 Eggs 

 Hatched. 



1905. 











Percentage. 



Jan. 6 ... 



B 



70 



5 2 



42 



8077 



8 ... 



A 



41 



35 



33 



94*28 



8 ... 



B 



72 



36 



24 



66-66 



„ 16 ... 



A 



103 



89 



26 



21 



80-77 



„ 3° ••• 



C 



72 



65 



90-28 



„ 3° — 



B 



98 



60 



53 



88-33 



31 ••• 



A 



5° 



41 



26 



63*41 



Feb. 9 ... 



C 



225 



178 



121 



67-97 



„ 15 ••• 



A 



95 



80 



62 



77*5 



„ 15 ... 



B 



99 



72 



56 



7717 



„ 16 ... 



A 



55 



42 



35 



83-33 



,, 23 ... 



B 



55 



5 2 



39 



75-0 



„ 27 ... 



C 



122 



86 



66 



7674 



„ 27 ... 



B 



93 



67 



5i 



76-12 



March 2 ... 



A 



52 



49 



37 



l S ' S l 



,, 10 ... 



A 



95 



7i 



57 



80-28 



10 ... 



C 



108 



64 



39 



60-95 



II ... 



B 



100 



92 



7i 



77-17 



20 ... 



B 



55 



44 



3i 



70-45 



0-7 





200 



173 



141 



81-5 



» 23 ... 



C 



112 



79 





67-08 



„ 25 ... 



B 



104 



80 



63 



7875 



An examination of Table II. again supports what was a very 

 striking fact in the previous report, namely, that the highest 

 averages were obtained by machines which, after taking out the 

 infertiles on the seventh day, were only partially filled. The 

 five hatches, shown in table below, which produced over 90 per 

 cent, of chickens from fertile eggs were all working much below 

 their nominal capacity. This is very suggestive, confirming 

 what was stated before, namely, that " overcrowding is undesir- 

 able in the embryonical stage of a chicken's development." 

 The temptation to work machines to their full extent is great, 

 but the result may not be profitable. 



Date of 

 Hatching. 



Class of 

 Machine. 



Capacity. 



No. of 

 Fertile Eggs. 



No. of 

 Chickens 

 Hatched. 



Percentage 

 of 



Capacity. 



1904. 













Oct. 1 ... 



C 



120 



62 



60 



51-66 



11 ... 



B 



100 



63 



61 



63-0 



„ 24 ... 



A 



100 



58 



56 



58-0 



1905. 













Jan. 8 ... 



A 



5o 



35 



33 



70-0 



» 30 ... 



C 



120 



72 



65 



60 '0 



