GENERAL ACTION OF MORPHINE 



175 



ferric chloride (Autenrieth and Warren). The instructor 

 may give you other tests for morphine if he desires to 

 do so. 



EXPERIMENT XXV. 



Morphine. (Dog: Respiration, Excretion, Pupils, Central 

 Nervous System, General Symptoms.) 



1. Inject subcutaneously into a dog twenty milligrams 

 (one cubic centimeter of two per cent solution) per kilo- 



0/facfory bulb 



Optic nerve 



Optic chiasnid 

 Optic tract 



Hypophysis - 



Cerebral 

 peduncle~ 



Pons- 



Olfactory tract 

 - Sulcus rhinalis 



-- Fossa lateralis 



idtfv^r 



--Pii~i form lobe 

 -Oculomotor nerve 



Jrochlesr nerve 

 -Tncjemmal nerve 



cX:&&r < i * 



nerve 

 Corpus trapezoideum 



'$-- Qlosso-pharynqeal verve 

 ' ---Vaqus nerve 

 --Accessory nerve 



Acoustic 



P 'd --^^Q^; -' ^^' 



^^ii ^N" ! x f: 



wM" m 

 Spinal cord -' W t ''j^ Median fissure 



Fig. 168. Base of the brain of a dog. (Modified from Sisson.) 



gram of weight of morphine hydrochlorate (or the acetate 

 or sulphate). Note carefully the size of the pupils and 



