Chloroform : its action and administration . blood, and in bloodunder the influence of certain agents absorbed intothe system, are due less to change of compositionthan to change of form. The blood is darkened bywhatever tends to distend the corpuscles, making them more and more convex; brightened by what- «. * Lallemand, Perrin, and Duroy, Role, &c., p. 291. Le sangarieriel et veineux est convert a sa surface de parcelles miroitantesqui ont Iapparence de globules de graisse; les globules disparaissentavec Ietat anesthesique. Nous avons observe le meme phenomene,chez les animaux sommis h, Iint
Chloroform : its action and administration . blood, and in bloodunder the influence of certain agents absorbed intothe system, are due less to change of compositionthan to change of form. The blood is darkened bywhatever tends to distend the corpuscles, making them more and more convex; brightened by what- «. * Lallemand, Perrin, and Duroy, Role, &c., p. 291. Le sangarieriel et veineux est convert a sa surface de parcelles miroitantesqui ont Iapparence de globules de graisse; les globules disparaissentavec Ietat anesthesique. Nous avons observe le meme phenomene,chez les animaux sommis h, Iintoxication alcoolique. 86 CHLOROFORM. ever tends to empty them, making tliem more andmore concave. According to tlie authors obser-vations, the agent which has the greatest effect indistending the blood-corpuscles is hydrocyanic acid;ether possesses the same power to a less acid distends the corpuscles, carbonic oxidetends to empty them. Ether turns the circulatino:blood dark, chloroform renders it bright. It Fig. 2 Human blood treated with dilute hydrocyanic acid. therefore, not one uniform action which anaestheticshave upon the blood. There may be distention, orthere may be attenuation of the corpuscles, yet, ineither case, there is the same incompetency to main-tain the functions of motion and sensation. Although, as we have just said, the tendency ofchloroform is to render the blood redder than natu-ral, still in cases of death from chloroform the bloodis always found dark and fluid. It is to be remem-bered that the deatllS have usually been due, not tothe progressive narcotic effect of the agent, but to asudden suspension of motor power. The appearancesof the post-mortem blood are those of sudden deathfrom other causes. ACTION OF CHLOROFORM AND ANiESTHETICS. 87 Microscopical observations. The author, in a paperread before the Medical and Chirurgical Society, in1861, expressed his belief that the change inducedupon the blood-corpuscles was one capable o
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