Ocean, what Seas may be joined vvith ir, 
OptkliSi Campani's GlafTes do txctW Divini's; 
'tis eafie by them to 4iftinguifh people at 
four Leagues diflance j 2* i g i, and i z, 
209. What they difcover in fupuer and 
Saturn, i. i. and 2. The proportions of 
Apertures in Perfpedives reduced, to a Ta- 
ble by M,Auy}uh^, 55» Animadverted 
upon by M. Hoofi, 4. ^9- 
How to illuminate Objeds to whatfoever pro- 
portion, propofed by M. Au\out, 4. 7 s". 
Hevelmy Hugenm, and fome in '^nglandtm'' 
deavour to improve Gptick'Gbffe?^ 6, pS. 
Seigneur EuraUmVs advance in the fame in- 
quired after 5 ip. 348. fome anfwer to it 
from P<?rK, 21. 547, 
Divini makes good OptickGlafles of Rock-= 
chryftal, that had veins ( if he mijioo^ not 
fomewbat dfe for veins ) 10, ^6z. 
■ To meafure the diftances of Objeds on earth 
by a Telefcope? undertaken by M. Juy>uh 
and others of the Koyal SQciety, 7. 1 2 3^ 
How a Telefcope of a few feet in Diameter 
may drawjbm^hundredsof feet, 7. 127. 
How a Glafs of a fmall convex-fphere may be 
made to refled the Rayes of Light to a 
JEocui at a far greater diftance than is ufual> 
12,202, 
P. 
PJrjley,to make it fhooi out of the ground 
vjn afew homs/ee Hon. Fabri 18.325, 
Pictures, a curious way in France of making 
lively Pidures in Wax, and Maps in a low 
relieve, 6, 9^. 
The caufe why Figures feem to look upon ail 
Beholders, on which (ide foever they place 
themfelves, 18. 326, 
Ancient Paintings compar'd with the Mo- 
dern, and a judgment of the Paintings in 
feveral Ages, their perfedions, and defedsa 
fee M. Felibien, 21,383. 
Petrification, in the wombs of Women, 18, 
520. in a Calf in the Cows womb, i.io. 
Stones found in the heart of the Earl of 
Bekanis, 5. 86. Part of an Elm by in- 
cifion, or Qt\\Qxm(ti-, petrified, a foot above 
the root and ground, 19. 3 29. Wood fetri- 
f ed in a Tandy groynd in England ; and of 
0}) 
a Stone like a Bone ot Oilcocolla, 4, 101, 
A Stons of excellent vertues found in the. 
head of a Serpent in the Indies, 6aQi» The 
caufes of Petrification inquired » i?. 
320. 
Planets, Cee Jupiter, Mars, Saturn , Sun^ 
Moon ; which are turbinated, and which 
not, 8. 143.. Toiindthe true diftances of 
the Sun and Moon from the earth, 9. 19 r. 
Phyfitians of China commended, fee Mede- 
cins, 
Prefervatio^s to pi:e(etvc fmzli Birds taken 
out of the Ihelluor other Fatiif'syiox disco- 
veries, 12, 198. 
Piilfes of the Sick how diligently, and to what 
good purpofes obferv'd in China ^ 14", 
249« 
R. 
RAinhom ftrangely pofiteds i|. 219. 
Raining of Aibes, and how, 21, 377* 
Kice profpersbeft in watery places fee Ha^ 
18, 328. 
S» 
S Alamander, ho^ it exringuiflies fire , and 
feeds by licking Indian earth, 21. 37-7, 
Sdlt byexcefriveufeftiffens, and deUroys ihc 
body, 8. 138. 
Salt-Springs, fee Springs, 
Salt-Feeter how made in the Mogols Domi- 
nions, 6. 103 = 
The propottion of Salt in be ft Salt-Springs 1 
and what erounds or fx^ns of beft Salt, 8c 
Sea~fiuxes, the caufe propofed by way of a new 
Theory, by Dr. Wallis, 16, 16 3. fee Tydes. 
Seas, whether they may be united, 3. 41. 
Siili-1'^^^^^ i'^cl silf^-Trade foliicitedj 5.87. 
and 2. 26. and 1 2. 201. 
Snalies , how they differ from Vipers , 8, 
138. 
Kattle-Snafies, how fometimes kiU'u in FiV« 
ginia, 3.45. and 4. 78. 
SnoW'boiifes direded,ind how to prefervelce 
and Snow in Chaffe, 8.155?, 
Springs,o{ peculiar note,w. 7. 127. »,'8,J33, 
i3f-and 1^6, ju I8^ 3230 
^ g g i T. Tap 
