by them to
distinguish people at four Leagues distance, 2. 131. and 12. 209.
What they discover in _Jupiter_ and _Saturn_, 1. 1. and 2.
The proportions of Apertures in Perspectives reduced to a Table by M.
_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 Glasses, 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 Glasses 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 Glass 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