78 ON THE NATURE AND ACTION OF THE 



12.40. Ligature applied, 



12.52. Frog springs actively about when touched. A con- 

 siderable dose of dried cobra-poison dissolved in water injected 

 into the dorsal lymph-sac. 



1.15. Cornea insensible. When either hind foot is pinched, 

 it is drawn up with a wriggling motion when the frog is lying 

 on the table. When the frog is suspended the foot is drawn up 

 at once. 



1.20. On applying acetic acid to both fore limbs and nose, the 

 hind legs were vigorously drawn up to the body, but only after 

 a long interval. 



1.26. Strong acetic acid applied to both fore limbs and nose. 

 Movements in all four limbs after 8 seconds. 



1.36. Weaker acid applied to both fore limbs. Movements 

 in all the limbs in 37 seconds. 



2.20. Applied to both fore legs. Movements in both fore 

 limbs in 4 seconds. Worse in hind legs. 



2.53. Applied to all the limbs and the nose. No motion 

 anywhere. Divided medulla. 



2.58. No reHex at all in 200 seconds after application of acid 

 to all the limbs and the body. 



Abdomen opened. Lumbar nerves irritated just below exit 

 from spine. 



Distance of primary 

 from secondary coil 

 Leg. in centims. 



6'3 Left gastrocnemius contracts very 



slightly ; right not. 

 Left gastrocnemius contracts slightly ; 



right not. Both sciatics exposed and 

 irritated in the thigh some distance 

 below ligature. 



Tetanus of leg. 



Tetanus. Nerve rather more firmly 

 applied to electrodes. Viscera re- 

 moved and bracliial nerves irritated. 



Contraction of foot. 



Contraction of foot. 



