407 



The results of the iuvestigjitiou are given in tables which contain the 

 following data for 9 calves slaughtered 1 hour after eating, 12 after 5 

 hours, 11 after 18 liours, and 2 after 30 hours : breed, age in days, date 

 of slaughter, date of rennet test, per cent of moisture, parts of milk at 

 37° C, curdled by one part of air-dry and water-free rennet in 10 

 minutes. 



Tbcsc results iiidicato a proj;res8ivo ijicroaso in the strength of tlie roiniet due to 

 fasting iu the three classes from 1 hour up to 18. The average number of parfs of 

 milk curdled by one part of water-free rennet is: after 1 hour's fast, 22,01)1 ; after 5 

 hours, 23,315; and after 18 hours, 25,338. The number of animals which fiisted 30 

 hours is too small to justify any comparison. [Averages are also given for each 

 breed and age. The author is, however, careful to state that] those averages are less 

 satisfactory than they would be were the number of each breed, and of each a<Te iu 

 each breed, identical iu each of the classes compared, and it was the original intention 

 to continue the work until five animals of each age in each breed had been included • 

 but in view of the fact that the work thus far done indicates chictly a wide individual 

 variation, apparently without reference either to feeding, breed, or age, it is not 

 deemed best to continue the work. The individual differences within the classes are 

 far greater than the differences between classes. 



On similar grounds the results for breeds and for animals of different ages are not 

 entirely satisfactory. » » * 



The average amount of milk curdled by one part of water-free rennet (pounds of 

 milk for 1 pound of completely dried rennet) from the animals of the different breeds 

 is as follows: Jersey, 27,945; Holstein, 22,665; Hereford, 20,143; and Shorthorn, 

 16,348. * * » The extremes for Jerseys are 9,188 and 43,261 ; for Holsteins, 7,974 

 and 53,404 ; for Herefords, 14,663 and 24,731 ; and for Shorthorns, 11,359 and 21,673. 

 Further, the average for the 5 lowest Jerseys is 17,292; for the 6 highest it is 

 36,826. » * * The averages for the different ages are as follows: from calves 5 

 days old, 28,597 ; 28 to 30 days old, 19,057; 35 days old, 19,084; 42 days old, 20,558. 

 The range for these ages is as follows: for calves 5 days old, 11,359 to 53,404; 28 to 

 30 days old, 7,947 to 36,549; 35 days old, 14,663 to 24,731 ; and 43 days old, 9,188 to 

 34,113. » * » 



Conclusions.— (l) Individuality appears to be the strongest factor in determining 

 the strength of the rennet. 



(2) Our average results indicate that fasting up to 18 hours increases the strength 

 of the rennet ; but the variations in each class are so large that we are not warranted 

 in considering our experiments a proof of the fact. 



(3) 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. 



(4) The rennet of the calf under 1 week old is apparently stronger than that of an 

 animal 4 weeks or more old. 



Treatment of potatoes with lime for the prevention of 

 ROT, W. P Brooks, B. S. (pp. 8, 9).— A brief report of an experiment 

 in which potatoes which had been sprinkled with lime were stored in a 

 dry cellar and in a dry granary along with untreated potatoes, fr(;m 

 September 17 to December 3. The diftereuces in the amounts of dry and 

 soft rot in the different lots were very small and the experiment was, 

 therefore, rightly deemed inconclusive. 



Variety test of oats, W. P. Brooks, B. S. (pp. 9, 10).— Brief 

 notes on 1 year's te8t of Des Flandres and Jaune de Flaudres oats. 



