FEEDS AND FEEDING 



1465 



Noguchi's serum, derived from Crotalus (anti-toxic against Viperinae 

 venom, but without effect against cobra venom). 



Nogiichi's serum, derived from Ancisirodon (anti-toxic against Vipe- 

 rinae venom but not against Coliibrinae venom). 



Attempts have been made with some success, to prepare a poly- 

 valent serum, without however as yet, providing one sufficiently polyvalent 

 to satisf}^ all requirements. 



Practical details of the way of preparing the serum by Calmette's method 

 and by the Watkins-Pitchford method, used in Natal, are given. In order 

 that the estimation of the efRcacity of the serum should be valuable, the 

 minimum fatal dose of the venom must be known and this varies with each 

 snake. The following table, resulting from a series of experiments carried 

 out in the Pietermaritzburg laboratory and made on the commonest snakes 

 of South Africa, is published. 



Minitniim fatal dose per kg. of animal employed. 



The Pietermaritzburg laboratory has prepared a polyvalent serum 

 against the venoms of the mamtba, the puff adder [Bitis arietans) and the 

 cobra [Maja spp.). According to the writer the preparation of a polyvalent 

 serum requires much time ; moreover the animal which should have been 

 hyper- immunised is hkely to die, and finally the serum obtained has not 

 always a satisfactory .efficacity towards all its components. It is preferable 

 to prepare a polyvalent serum by simply mixing the monovalent sera of 

 maximum strength. 



1087 - Deraiophoronema came/i, a, New Species of Filaiia from the Camel's 

 Lung. — RoBiAxoviTCH, in Comptes rendiis dcs seances de la societe de Biologie, Vol. 

 lyXXIX, No. ig, pp. 745-; {6. July iqi6. 



In the Kirghiz steppe two cases of the death of a camel have been re- 

 corded, caused by a new filaria of the kings. The parasite has been investi- 

 gated at the Veterinary Laboratory of Petrograd and named Deraiopho- 

 ronema cameli n. g. n. sp. 



1088 - Metabolism of the Organic and Inorganic Compounds of Phosphorus. - Forbes, 



E. B., in collaboration \\ith Beegle, V. M., Whittier, A. C, Fritz, C. M., Collison, R. C,. 

 Woods, H. S., an! Knxidsen, C. W., in Ohio A<:,ricuUnral EKperiment Station, Technical 

 Series, Bulletin No. 6, 80 pp. 23 fig. Wooster, Ohio, 1914. 



This comparison of the nutritive value of different phosphorus com- 

 pounds was undertaken as part of a general study of the metabolism of in- 

 organic substances in relation to the practical feeding of man and animals. 



The experiments were made on pigs, with normal standard rations, 

 composed principally of relatively simple manufactured products of vege- 



FEEDS 

 AND FEEDING 



