150 VENOMS 
liquid venom, with 0°017 gramme to 0‘055 gramme of dry residue. 
In all the experiments of this physiologist, the proportion of dry 
residue varied from 9 to 38 per cent. of the liquid venom excreted 
by the reptile. 
À Lachesis 
medium size, when both of its glands were squeezed, furnished 
lanceolatus (Fer-de-lance) from Martinique, of 
me with 0320 gramme of liquid venom, and 0°127 gramme of dry 
extract. 
. NAJA HAJE I. NAJA HAJE Il. 
Number of WEIGHT OF VENOM WEIGHT OF VENOM 
bite Date 
Fresh Dry Fresh Dry 
| Gramme Gramme Gramme Gramme 
1 April 20) ere 07119 0‘051 
2 EN DRE ce te Onto 0‘043 
3 | Mary, olf ...t 07124 0°085 
4 NS pels, mcs al ae ate 0132 0037 
D + DURS a ae | 0‘091 0-019 
6 June 2 ... | 0127 0:039 
{| SR LC CSI a rs 07121 0°043 
8 July 1 bce Soe 0-078 0:026 
9 ¥ DU tee 07122 0-048 
10 imp AOD She a ns Got 0:034 
11 AGS 0:079 0 021 | 
Totals ... 0581 0174 |  0-684 0202 
Two large Cerastes vipers, from Egypt, yielded me, one 
0‘123 gramme, the other 0°085 gramme of liquid venom, which, 
after desiccation, left respectively 0'027 gramme and 0:019 gramme 
of dry residue. 
Under the same conditions, a magnificent Crotalus confluentus 
(Mottled Rattle-Snake), for which I was indebted to the kindness 
of Mr. Rethe, of New York, yielded, two months after reaching 
my laboratory, 0°370 gramme of liquid venom and 0‘105 gramme 
of dry extract in a single bite. 
