PHYSIOLOGICAL ACTION OF VENOM OF BLACK SNAKE. 255 
ratory excursions of the tambour, as a measure of the condition 
of its respiratory mechanism. This does not however, indicate 
the total disablement, for the respirations were diminished in 
number as well as extent. 
Experiment I. 
Distance pred ica of 
between sor Remarks, 
coils cord, 
Before injection... 46cm. | 12 mm. 
15 mi inutes after 1p 49 
30 
45 ” 
l hour 10 ms 47 cm. 
ete oe 49 ,, | 10 mm. | respiration slowed. 
” 30 2” 49 ” 85 2 ” eed 
a” 45 ”> 49 ” 6 3” 2” 29 
2 hours 0 a pe 55s, ‘ very slow. 
» 15 ve 45°, fe circulation began to fail. 
” 30 ” 44 ” 2 2? 
” 45 ” 42 ” 5 ” 
8 hours 0 » 36 0 » 
Experiment II. 
SS es ST Sea 
Distance 'Amplitude of 
between | respiratory Remarks. 
coils. record. 
Before snore... Sem. | 14 mm. 
5 minutes after me 
30 * respiration much slower 
45 ”» 36 cm 15 93 »” ” 
Lhour 0 » 6 14°65. ;, yy very slow. 
» 15 » 29°53, agen blood pressure fallen; 
corneal reflex gone; 
respiration very slow. 
Ht 90 = 30 ,, "BD sy 
oe | | 8 
Experiment III. 
re ee a ie CT) apie +) Tae el ae oe aks ee 
zs mek Seb gs i a wee 
Dista A litude of 
between H respiratory Remarks. 
Before injection... | 41cm. | 15 mm. 
15 minutes after ih pao 
4 ” 41 re vo ee 
fe 40° 5, [26° S 
» - ” 42 Sy De ver 
» is 2» 42 ae 43 : 
a * 68 5 AAD 24s r.spiration slowed. 
