Philosophical Transactions of the Royal Society Part 50

_Auzout_, 4. 55.

Animadverted upon by M. _Hook_, 4. 69.

How to illuminate Objects to whatsoever proportion, proposed by M.

_Auzout_, 4. 75.

_Hevelius_, _Hugenius_, and some in _England_, endeavour to improve Optick Gla.s.ses, 6. 98.

Seigneur _Burattini_'s advance in the same inquired after, 19. 348.

some answer to it from _Paris_, 22. 374.

_Divini_ makes good Optick Gla.s.ses of Rock-chrystal, that had veins (_if he mistook not somewhat else for veins_) 20. 362.

To measure the distance of Objects on earth by a Telescope, undertaken by M. _Auzout_, and others of the _Royal Society_, 7. 123.

How a Telescope of a few feet in Diameter may draw some hundreds of feet, 7. 127.

How a Gla.s.s of a small convex-sphere may be made to reflect the Rayes of Light to a _Focus_ at a far greater distance than is usual, 12. 202.

P.

_Parsley_, to make it shoot out of the ground in a few hours, see _Hon.

Fabri_ 18. 325.

_Pictures_, a curious way in _France_ of making lively Pictures in Wax, and Maps in a low relieve, 6. 99.

The cause why _Pictures_ seem to look upon all Beholders, on which side soever they place themselves, 18. 326.

Ancient _Paintings_ compar'd with the Modern, and a judgment of the _Paintings_ in several Ages, their perfections, and defects, see M.

_Felibien_, 21. 383.

_Petrification_, in the wombs of Women, 18. 320.

in a Calf in the Cows womb, 1. 10.

_Stones_ found in the heart of the Earl of _Belcarris_, 5. 86.

Part of an Elm by incision, or otherwise, _petrified_ a foot above the root and ground, 19. 329.

Wood _petrified_ in a sandy ground in _England_; and of a Stone like a Bone or Osteocolla, 6. 101.

A _Stone_ of excellent vertues found in the head of a Serpent in the _Indies_, 6. 102.

The causes of _Petrification_ inquired, 18. 320.

_Planets_, See _Jupiter,_, _Mars_, _Saturn_, _Sun_, _Moon_; which are turbinated, and which not, 8. 143.

To find the true distances of the Sun and Moon from the earth, 9. 191.

_Physitians_ of _China_ commended, see _Medecins_.

_Preservation_, to preserve small Birds taken out of the sh.e.l.l, or other _Faetus_'s, for discoveries, 12. 198.

_Pulses_ of the Sick how diligently, and to what good purposes observ'ed in _China_, 14. 249.

R.

_Rainbows_ strangely posited, 13. 219.

_Raining_ of Ashes, and how, 21. 377.

_Rice_ prospers best in watery places, see _Marishes_, 18. 328.

S.

_Salamander_, how it extinguishes fire, and feeds by licking _Indian_ earth, 21. 377.

_Salt_ by excessive use stiffens, and destroys the body, 8. 138.

_Salt-Springs_, see _Springs_.

_Salt-Peeter_ how made in the _Mogols_ Dominions, 6. 103.

The proportion of _Salt_ in best Salt-Springs; and what grounds or signs of best _Salt_, 8. 136.

_Sea-fluxes_, the cause proposed by way of a new Theory, by Dr. _Wallis_, 16. 263. see _Tydes_.

_Seas_, whether they may be united, 3. 41.

_Silk-Worms_ and _Silk-Trade_ sollicited, 5. 87. and 2. 26. and 12. 201.

_Snakes_, how they differ from Vipers, 8. 138.

_Rattle-Snakes_, how sometimes kill'd in _Virginia_, 3. 43 and 4. 78.

_Snow-houses_ directed, and how to preserve Ice and _Snow_ in Chaffe, 8.

139.

_Springs_, of peculiar note, n. 7. 127. n. 8. 133. 135. and 136. n. 18.

323.

{404}

T.

_Taste_, the Organ and Nature of it, 20. 366.

_Thunder_ and Lightning, the Effects examined, n. 13. 222. n. 14. 247.

_Tydes_, the causes proposed, 16. 263.

See a further examination by a severe History of Tydes, Winds, and other circ.u.mstances directed, n. 17. n. 18. n. 21.

_Trees_ of Oak how found under-ground in Moors or Marishes, 18. 323.

_Thee_, in _China_ and what; how exchanged there for dried leaves of Sage by the _Dutch_, 14. 249.

W.