The range for these ages is as follows : For calves 5 days' old, 

 11,359 to 53,404 ; 28 to 30 days' old, 7974 to 36,549 ; 35 days' old, 

 14,663 to 24,731, and 43 days' old, 9188 to 34,113. Thus it appears 

 that in each class there is a greater difference between the lowest and 

 the highest than between the lowest and the highest classes. We 

 must be cautious then, in drawing deductions from these figures ; but 

 it seems not unreasonable to conclude that the rennet is strongest in 

 the calf under one week old, as indicated by the above averages. 



Conclusions. First : Individuality aj>pears to be the strongest fac- 

 tor in determining the strength of the rennet. 



Second: Our average results indicate that fasting up to eighteen 

 hours increases the strength of the rennet; but the variations in each 

 cla^s are so large that loe are not luarranted in considering our experi- 

 ments a proof of the fact. 



Third : That breed influences the strength of the rennet has not been 

 established ; though averages show a considerable variation which places 

 those compared in the following order : Jersey, Holstein, Hereford and 

 Shorthorn. 



Fourth: The rennet of the calf under one iveek old is apparently 

 stronger than that of an animal four weeks or more old. 



TREATMENT OF POTATOES WITH LIME FOR THE 

 PREVENTION OF ROT. 



When our potatoes, after being dug, were found to be rotting 

 badly, it was determined to try spriukling thoroughly with lime, a 

 method of treatment often advised. With this object in view four 

 samples of a bushel each, of apparently sound tubers were selected 

 from a pile which was rotting badly. These were placed in bushel 

 baskets, and two baskets were put into a dry cellar and two into a 

 well lighted and drj' granary. The tubers put into one basket in 

 each lot were thoroughly sprinkled with air-slaked lime, as they were 

 put in ; the other basket was untreated. This work was done on 

 Sept. 17th ; and the tubers lemained undisturbed until Dec. 3d, when 

 they were carefully examined. The results are shown in the follow- 

 ing table : 



