IIO 
Of the Itch. 
not be wafhed away. If mufcles be put into fait and 
water, they will fallen themfelves to the fides of the vefTel 
we place them in. 
Scallops, cockles, limpets, perriwinkles, and abun¬ 
dance of other ihell-filh, are objedts that have as yet been 
very fiightly examined by the microfcope ; and therefore 
the ferious enquirer into nature’s fecret operations may 
here be certain of difcovering beauties, which at prefent 
he can have no conception of. 
Of the itch. 
D OCTOR Bononio hath difcovered that this 
diftem,,er owes its rife to little jinfedts c under the 
cuticula, whole continual bitings caufe an oufing of the 
ferum from the cutis, and produce thofe pullules whereby 
the difeafe is known. 
For on obferving people in this dillemper pull out of 
the fcabs, little bladders of water with the point of a 
pin, and crack d them like lice upon their nails, from a 
place fcabbed over, and where there was a grievous 
itching, he picked out a little pullule, and from thence 
fqueezed a thin matter, in which he could but juft dif- 
cern a fmall white globule; but on applying it to his 
microfcope, found it to be a minute animal of a whitilh . 
colour, in Ihape refembling a tortolfe, but fomewhat 
dark on its back; it is reprefented in fig. 173, at A and 
B; they have fome long hairs, fix legs, a lharp head, 
and two horns, and are very nimble. He repeated this 
on perfons of all ages, fexes, and complexions, and at 
all feafons of the year, and found the fame fort of animals 
in 
e Bonani Micro, p. 9t. d Phil. Tranf. No. 283. 
