437 



would have a similar effect in the destruction of the ferment. In 

 a case which came under the author's observation in which suspicion 

 fell upon Linseed Cake as the cause of death in calves fed upon 

 it, he was able to obtain Prussic Acid equal to 0.017 P er cent - or 

 1.19 grains per Ib. As this quantity was only about half that 

 found by Prof. Dunstan, and by Dr. Bernard Dyer, who has 

 examined a large number of samples of Linseed Cake from diffe- 

 rent sources, and by the A. also, he was unable, in the absence 

 of further details than were placed at his disposal, to refer the 

 deaths to the particular sample of Linseed Cake ; but it seems that 

 if Linseed or Linseed Cake Meal is used in the preparation of a 

 calf meal, and is mixed into a gruel vith water which does not 

 approach the boiling point, and is allowed to stand for a conside- 

 rable time before use, a grave danger will be run. From time to 

 time cases of death in calves fed upon calf meals containing Lin- 

 seed have been brought to the Author's notice, but he has not been 

 able to associate the deaths with the use of the calf meal. In the 

 light, however, of our present knowledge Mr Smetham would not 

 be surprised to learn that, in some of the cases at all events, the 

 deaths were due to Prussic Acid poisoning, brought about by the 

 improper preparation of the gruel from the calf meal. " 



ALFPED SMETHAM. Chinese and Burma Decorticated Cotton 

 Cake. West African Cotton Cake. Some New Feeding 

 Stuffs and their Relative Value as Cattle Foods. (Li- 

 verpool, 1909, p. 7). 



" Cotton Seed Cakes, Decorticated and Undecorticated. 



Until recently the bulk of the Decorticated Cotton Cake and Meal 

 imported into Great Britain has come from North and South Ame- 

 rica, but recently there have been shipments from China. Those 

 that have come under the Author's observation have been in a 

 fairly fresh condition, and promise, if the supply is maintained, to 

 become a useful addition to the rapidly increasing feeding materials 

 at the disposal of the farmer. As will be seen from the following 

 analyses, which may be taken as typical of the present imports, these 

 samples compare favourably in composition with the American 

 article: 



