i oi 6 A General Index of the 
Sorbus pyriformis, n. 139. p. 978. 
Sounds. An Introductory Effay 
concerning the Doctrine of 
them j containing fome Propo- 
fals for the Improvement of A- 
couftics; comparing that Science 
with Optics. Hearing wich Vi- 
fion. Each divided into direct 
refracted and reflexed. Three 
ingenious Problems to this 
purpofe. Sonorous Bodies ought 
to be placed near a fmoothWall, 
Water,, &e. n. 15-6. p. 471. 
Spaws (Sulphur) of the fame na- 
ture with Brine- Pit?, n. 1^6. p. 
49 *• 
Specific Gravity of leveral Bodies. 
See Gravity. 
Speakir/gTrutnpet de(cribed,n.i4r. 
p. 1027. uled to difcover the 
Leak of a Ship, n. 201. p. 78;. 
Spleen morbid^ n. 194. p. 5*43. See 
Stent ero pbonicon. 
'Spectacles without Glaffes by the 
help of fhort Tubes, n. 15-6. p. 
.474. with Glaffes and the fe- 
veral forts of them, n. 1 j6. p. 
481. 
Speculum Plane, Con vex, Concave, 
n. 1 5*6. p. 484. See Optics. 
Sperm a ceti 3 what, n. 205-. P974. 
Spider s> n. 139. p. 982. 
Spirits Animal, their diforder the 
caufe of mod Difeafes, n. 199. 
p. 717. 
Spirit of Wine grows warm upon 
the addition of Water, n. 168. 
p. 898. diffolves Chryftals of 
Silver and coagulates Milk, p. 
902. 
Springs (one fait another Medici- 
nal) on the Banks of the River 
Weare in the Bifhoprick of Dur- 
ham, n. 163. p. 726. 
Caufe of Springs^n. 192. p. 46$. 
9 hilofophical tr an/actions . 
Stars fixt their Longitudes, Lati- 
tudes, right Afcenfions and De- 
clinations, n. 1 5*9. p. ^9. 
Statutes how calt very thin, n. 
i86. p. 25-9. 
Steams fubterraneous } Obfervations 
on them, n. 169. p. 922. 
Steel See Metals. 
St enter 0 pbonicon , or Speaking 
Trumpet, n. 156. p. 481. See 
Speaking Trumpet. 
Three Stomachs in the Tajacu, n. 
iyj p. j6y. 
Sunes figured, n. 139. p. 985-. 
Snub- ft ones commonly found 
in Alum-Mines, n. 142.P.10J2. 
Stone-powder. See Sand. Formed 
fiones found at Hunton in Kent, 
thought to be or that fort call'd 
Conchites, a kind of Marble, 
iuch as is dug about Bluckley 
in the Wild of Kent, n. 15*5-. 
p 463. A Stone growing to an 
Iron Bodkin in the Bladder of 
a Boy, n. 168. p. 882. Stones 
voided byStige, n. 170. p.^61. 
n. 181. p. 94. and n. 182. p. 
140. A large ft one taken out of 
the Bladder of a Man, n. 171. 
p. 1015". Stones voided per pe- 
nem> n. 175. p. 1162. A large 
Stone voided by a Woman per 
me at urn urinarium^ It. 178. p. 
1269. The means of extract- 
ing them fo without cutting, 
n. 202. p. 817. See Calculus 
bumanus. A Defcription of 
Stones mppofed to be in Fieri, 
on the River Don, n. 17$. p. 
115-7. A ftrange Tincture gi- 
ven to a Stone without Fire, n. 
179. p. 22. Arms of Stone found 
buried in France, n. 185". p. 223 . 
Stone Pillars of thtGiants Cawjs- 
way in the Country of Antrim 
