58 



MANUAL FOR SUGAR GROWERS. 



Ash Constituents in Animal Produce and Voided, for 

 100 Consumed as Food. 



Voided in excre- 

 ments and per- 

 spiration. 



Fattening oxen . 

 Fattening sheep 

 Fattening pigs. . 

 Milking cows . . 



97.7 

 96.2 

 96.0 

 89.7 



In these experiments very great care was taken to 

 avoid loss of any kind, — such precautions as are im- 

 possible in agricultural practice. The following ac- 

 count of another series of exj^eriments is taken from 

 Dr. Griffiths' treatise on manures, p. 39 : 



" TJie Muntz-Glrard Experiments. — Drs. A. Muntz 

 and C. Girard (' Annales Agronomiques,' tome xii., 

 429-436) have performed a series of well-conducted 

 experiments to establish the proportions of the ni- 

 trogen of foods stored up in the increase of live 

 weight, that recovered in the manure, and also the 

 proportion of nitrogen lost. The food given was 

 v\^eighed and analysed, the increase of live weight or 

 the quantity of milk yielded during the experiments 

 were noted, and the manure carefully collected and 

 analysed. The following results were obtained : 



