JENKINS AND Carson, Nervous Impulse in Worms. — 275 
pea OL Pa Ta) ae Fea Se eS 
LIPOPPOMIALASILIIMIIIPIMSPPIPPLIPLIILIPICELIPIII IPL PL LIAL ILL III 
Fig. 8. Sthenelats fusca. Postero-anterior. Length of nerve cord between 
distal and proximal electrodes: 5 cm. Rate: 250 cm. persec. Time: 100 
d.v. per sec. 
TABLE VIII. 
Detail of experiment on Sthenelats fusca. Dec. 31, 1902. 
Postero-anterior. 
Total latent time in sec. 
Distal Proximal 
.065 -025 
045 .028 
055 .028 
-050 .029 
O45 -028 
.048 .025 
Average: .O51 rch .027 
Transmission time: 0.024 sec. 
Length of cord: 5 cm. (53 segments). 
Rate: 205 cm. per sec. 
Eunice sp. 
This worm, fairly abundant, lives under rocks in tubular 
passages formed by cementing particles of gravel together. It 
attains a considerable length, specimens 25 cm. long being 
taken. It breaks into pieces very readily. For this reason, 
and further, because of its violent struggling in being captured, 
an unbroken specimen was rarely secured. 
When being prepared for experimentation in the usual 
manner, Eunice always broke in pieces unless it was previously 
