which are found in our own country being much fmaller 
than the reprefentations given by Swammerdam, Roefel, 
and Seba. The microfcopical figure in the annexed 
plate is executed with the greateft accuracy. The fepa- 
rate figure reprefents the head and thorax very much 
magnified, in order to fhew the pedtinated parts, which 
though differing in fituation, are nearly of the fame 
form as in fcorpions. Fig. x. fhews the natural fizeof 
the Englifh fpecimens. Linnmus acqafes it (I believe 
moft unjuftly,) of fometimes getting under the lkin, 
and raifing a painful tumour. It is generally found on 
old walls, and fometimes amongft papers, &c., and is 
pot a very common infeft. 
