Royal Society. 175 
rain-water, asfoon as it falls, has many, and fnow-water has more 
ofthefe globules j the dew, that ftands on glais-windovvs, abounds 
in them 3 and in regard rains and dews are continually afcending 
or delcending, Mr. Gray is of opinion, that the air is full of 
them; they ieem to be of the fame fpecific gravity with the water 
they fwim in, the dead remaining in all parts of the water ; of 
many thoufands Mr. Gray obferved, he could difcern no lenlible 
difference in their diameters, they appearing of equal bignefs; in 
water that has been boiled, they retain their ihapes, and will 
fometimes revive. There is another fort of inters, but not fo 
frequently to be found, at leaft in winter; they are much longer 
than the former, can transform themfelves into many fliapes, are 
for the mod part elliptical, but fometimes they contract themlelves 
fo as to become almoft globular; and fometimes they extend 
themfelves in fuch a manner, as to be twice or three times longer 
than broad; thefe fometimes turn themlelves round on their axes 
and diameters as they goj they confill of traniparent and opaque 
parts. 
^be Ufe of Opium atnoJigfl the Turks ; ly 2)r, Edw. Smith. 
Phil. TranfN° 221. p. 288. 
O'H'E. Muftapha Satoory an inhabitant of Sediquiy a village 
fix miles from Smyrna, by ;trade a coffee-man, about 45 
years of age, a mofl famous opium-eater, told Dr. Smithy that 
his conftant dole was three drachms a- day of crude opium, one 
half of which, he took in the morning, and the other half in the 
afternoon; but that he could fafely take double that quantity. 
Dr. Smith therefore, reiblving to be an eye-witnefs of what he 
could do, provided the belt opium he could get, and weighed it 
nicely into drachms ; of which the 'Turk took a drachm and a 
half, made up into three pills, and chewed them with a little 
water ; the vifible ef&fis the opium had on him were to make his 
eyes fparkle, and give a new air of life and brightnels to his face; 
at 3 o'clock in the afternoon he came to the dodor again, and 
took the fame quantity as in the morning, and appeared after it 
with the fame lymptoms, alledging that it had always the lame 
effefts upon him, j^iving him vigour and ipirir, and that it was 
become as neceffary to him as any other part of his luftenance, that 
it made him fitter for procreation, that it never affecled him with 
deep and drowhnels, but rather hindered his repole, when he 
happened to take an over-dofe ; that he had uftd it for 2 5 yearvS, 
beginning with the bignels of a grain, and gradually proceeding 
