Dataset:  mollusc.dat
Source: Jenkins, O.P. and Carlson, A.J. (1903), "The Rate of Nervous Impulse
in Certain Molluscs," American Journal of Physiology, Volume 8, pp 251--268.

Description: Rate of nervous impulse measurements (cm/sec) among
specimens from 5 species of molluscs.

Variables/Columns

Species Name           1-32
Species Number         35 
Specimen id            42-43
Impulse rate           45-51