202 VETEEINARY TOXICOLOGY 



the nodes, the stem of T. repens being creeping and rooting 

 at the nodes.* 



There seems to be an agreement of opinion that prolonged 

 feeding of sheep and other animals on alsike clover may 

 prove harmful, and it is remarked that the plant is not 

 eaten readily, particularly by the horse (Cornevin). 



Symptoms. — In the horse the same authority notes, as 

 the results of the derangement, excessive salivation and 

 stomatitis ; and as general symptoms sweating, convulsive 

 masticatory movements, and oedema of the upper lip. At the 

 same time there is chronic intestinal irritation and colic. 

 In severe cases the conjunctival and buccal membranes are 

 infiltrated, and display a marked yellow tint. 



W. M. Scott t describes the poisoning of tup lambs by 

 alsike clover on the point of seeding. Ten out of fifty were 

 very ill, staggering and gritting teeth continuously. Some 

 of the worst emitted short, sharp, painful grunts, and 

 two died. 



Treatment. — This consisted, in Scott's cases,- of removal 

 to bare pasture land, and exhibition of ether, morphine 

 hydrochloride, hydrocyanic acid, chloroform, and sodium 

 bicarbonate, with 2 tablespoonfuls of linseed oil, and ^ pint 

 of linseed tea — night and morning. 



Post-Mortem Appearances. — The rumen full, reticulum 

 empty, abomasum containing watery herbage, membranes 

 much inflamed. The intestines alternately contracted and 

 dilated ; the contracted parts pale and bloodless, the dilated 

 parts red or purple. Yellow seeds were found in the ingesta. 

 Lungs and right kidney slightly congested. Bronchial 

 tubes and trachea contained slightly sanguinaceous froth. 



The cause of poisoning by this plant is unknown. 



Lathyrism. 



Several varieties of the genus Lathyrus (such as dog- 

 tooth, Indian, or mutter, pea) have proved poisonous. 

 L. sativus, L. cicera, and L. clymenum are typical examples. 



* Bentham and Hooker. t Vet, Becord, 1900, p. 101. 



