496 
Vol. XXIX, No. 10 
Journal o f Agricultural Research 
appears that unfavorable conditions 
are most likely to occur during the 
lambing season and in the winter 
months. The cold, wet weather is very 
trying to the ewes and lambs; and fre¬ 
study was made of a number of years in 
south-central England and at Urbana, 
Ill. {20). Hammond ( 8 ) found the 
season to have considerable influence 
on the growth of sheep, particular!}’ 
Tigs. 10 to 14—10, bad year, Urbana, Ill., 1912, due to high summer humidities; 11, fair year, Urbana, Ill., 
1913, due to low summer humidities; 12, bad year, Urbana, Ill., 1915, due to high humidity and rainfall; 
13, good sheep year, Urbana, Ill., June, 1920; 14, hythergraph, 1919, Cedar Lake, King County, Wash. 
quently a cold, wet fall and winter are 
followed by a small fall of lambs (16). 
GOOD AND BAD SHEEP YEARS 
Since some years seem to be more 
favorable for sheep than others, a 
during their first year. He attributed 
most of this to rainfall, which he cor¬ 
related with the weight at the end of 
the first nine months of the life of the 
lamb. 
The years 1909 to 1921 (1912 no data) 
in England were studied, and the inf or- 
