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162 REPORT OF THE DIRECTOR OF THE 
CHANGES IN DIAMETER AND VOLUME oF GLOBULES DurinG LACTATION. 
Diameter | Diameter | Volume Volume 
DIVISIONS ON MICRO. SCALE, first twelfth first twelfth 
month. month. month. month. 
Tuess than'one’ ss: .6taee. nae 7.9 14.2 mas oe 
©)ne'to’ twee sc fs ee 38.3 49.8 LOS 20.9. 
Two to'three:.:.:'.\; s smaaneie as 32.5 26.3 28.9 37.3 
‘Three to fours... ¢ sateen | 15.1 | 7.6 31.7 25.5 
our to five) 50)... cc 1Ge ee 5.1 1.8 21.2 | 11.8 
Five to. six... on Oa ad 3 7.8 | 3.8 


ANALYSIS OF FRuIT TREES. 
An examination has been made of several varieties of nursery 
stock for the purpose of learning the quality and quantity of the 
mineral constituents removed by them from the soil. 
‘The trees were contributed for the purpose by several of the 
‘leading nurserymen of Geneva from their stock, and were taken 
up early in the spring before the buds were well developed. The 
roots were as carefully cleaned of adhering earth as was possible, 
and after weighing, the trees were allowed to become air dry, 
when they were again weighed. Lach tree was then divided into 
roots, trunk and branches, which were separately weighed, and 
after cutting up were placed in glass jars to await analysis. Hach 
sample was burned at a low red heat, the ash weighed and pre- 
served for analysis. It will be seen that the amount of ash in the 
roots and its composition in many cases seems to show that it was 
practically impossible to entirely remove from the roots the 
adhering earth. | 
The results thus far obtained are presented in the following 
tables: ® 

a 
