TEE 
lately dug up In the north of Ireland Nevile 
Remarks on the above Molyneux 
Teeth. An account of elephants teeth and bones found 
under ground - Sloane 
Part 2 - Sloane 
mmm . — A letter concerning a clufter of fmall teeth ob- 
ferved at the root of each fang, or great tooth, 
in the head of a rattle fnake, upon difleCting it 
Bartram 
•— Letter concerning an extraordinary large foflil 
tooth of an elephant - Baker 
— - An account of fome very large foflil teeth found 
in North America - Collinfon 
Sequel to the account Collinfon 
— A diflertation on the bones and teeth of elephants, 
and other beafls, found in North America, and 
other northern regions, by which it appears they 
are the bones of indigenous beafls Rafpe 
Telescopes. Judgment touching the apertures of 
objeCt glafles, and their proportions, in refpeCt 
to the feveral lengths of telefcopes, together 
with a table thereof - Auxout 
m i — - Of M. Hevelius’s promife of imparting to the 
world his invention of making optick glafles ; 
and of the hopes given by Mr. Hugens, of 
Zulichem, to perform fomething of the like 
nature ; as alfo of the expectations conceived 
of fome ingenious perfons in England to im- 
prove telefcopes 
Hevelius , Hugens , and Du Sons 
mm Inflance to Mr. Hook, for communicating a 
contrivance of making, with aglafs of a fphere 
of 20 or 40 feet diameter, a telefcope, draw- 
ing feveral hundred feet, and of his offer of 
recompenfing that fecret with another teaching 
to meafure, with a telefcope, the diftances of 
objeCts from the earth - Au%out 
A method by which a glafs of a fmall plano- 
convex fphere, may be made to refraCt the 
rays of light to a focus of a far greater diftance 
than is ufual - - Hook 
— — Method of polifhing telefcopic glafles by a turn- 
lathe, and the making of an extraordinary 
burning glafs at Milan - Anon . 
— " ■ > An account of a new catadioptrical telefcope 
invented by Mr. Newton - Newton 
F urther fuggeftions about his reflecting tele- 
Q-qq 
Tranf. 
XXIX 367 
— 370 
XXXV 457 
497 
XLI 35 8 
XLIII 33, 
LVII 464 
— 468 
LIX 126 
I 55 
-98 
— 123 
— 202 
in 795 
V 4 004 
487 
Abiidg. i 
IV 2 236 1 
“' 237 j 
VI 2 205 
— * 21 1 
IX 60 
x 599 
I IQ! 
— 193 
— 194 
I 197 
fcope; 
