528 



Scientific Proceedings (132) 



In the data submitted blood-sugar shows the greatest increase. 

 It is well to bear in mind that excitability is a marked symptom 

 in many cases and such a state often indicates a hyperglycemia 

 per sc. The average increase in the extractives does not seem 

 large enough to indicate that the increase is any more a cause 

 of the disease than it might be a result of the tissue activity 

 taking place. 



Urine examinations do not indicate any more nephritis than 

 might be expected to accompany such violent pathological 

 changes in the tissues as take place in axoturia. Hemoglobinuria 

 is so characteristic that the urine of typical cases is coffee colored 

 rather than the color normal to the urine of the horse. 



A German, Dr. Hertha, has recently advanced the theory, with 

 what he considers abundant proof, that the condition is due to 

 excessive lactic acid formation in the tissues. Dr. P. A. Fish, 

 Dr. J. N. Frost and the author are now working on this theory 

 and hope to report results in the near future. 



263 (2223) 



Further studies on "posterior paralysis" in swine. 



By L. A. MAYNARD, S. A. GOLDBERG, K. V. WILLIAMS and 

 O. B. CHRISTY. 



[From the Department of Animal Husbandry and the Department 

 of Comparative Pathology, Cornell University, Ithaca, N. Y.] 



"Posterior paralysis" is one of the terms rather loosely used to 

 designate a trouble in swine which is characterized by stiffness, 

 particularly in the hind legs, inability to rise or stand, the occa- 

 sional swelling of the joints and fractures of the leg bones. 

 Some preliminary studies relative to this trouble were made the 

 subject of a previous communication. 1 



In continuation of these studies, 24 pigs, around 30 pounds in 

 weight, were placed on experiment in the summer of 1922. The 

 characteristic symptoms were produced on a ration of yellow 



1 Maynard, L. A., Proc. Soc. Exp. Biol. Med., 1922, xix, 427. 



