ACTION OF CONIINE 



Lachrymal 



Maxillary 

 nerve 



(Meckel's 

 Spheno-yatatine 

 ganglion 



Geniculat 

 ganglion 



Internal 



carotid 



plexus 



Superior cervical! 



Spinal 



cord 



I -Thoracic 



Semilunar 

 (Gasserian) 

 ganglion 



Corpora 

 Quadrigemina 



Trigeminal 

 nerve 

 (N.V) 



Facial nerve 

 N.VII) 



Centers for 

 lachrymal 

 secretion 



Medulla 

 oblongata 



Out-going sympathetic 

 ram! communicantes 



Hutleck 



Fig. 236. Diagrammatic representation of the innervation of the lachrymal glands. 



EXPERIMENT LVIII. 



Coniine. (Dog: Blood-pressure, Respiration, Salivary 

 Glands and Kidney, Spleen or Intestinal Loop.) 



1. In the usual manner prepare a dog (ten or twelve 

 kilos) for recording blood-pressure and respiration. The 

 animal may be given morphine, twenty milligrams (one 

 cubic centimeter of two per cent solution) per kilogram of 

 body weight half an hour before the operation, or ether 

 alone may be used. The injecting burettes contain coniine 



