DER 
DES 
DeRHAM, Rev. W illiam. The differences in time 
of the meridians of diverfe places, computed 
from obfervations of the eclipfes of Jupiter’s 
fatellites * 
Defcription of fome uncommon appearances ob- 
ferved in an aurora borealis 
*— Obfervations on the ignis fatuus 
— — Account of the froft in Jan. 1730 1 
— — Abftradt of meteorological diaries, communi- 
cated to the Royal Society; with remarks 
— Obfervations of the appearances among the fixed 
liars, called Nebulous ftars 
— Abftradt of the meteorological diaries of 1724 
and 1725 - 
Experiments on the vibrations of pendulums 
Desaguliers, J. T. LL. D. An account of fome 
experiments of light and colours, formerly 
made by Sir Ifaac Newton, and mentioned in 
his Opticks, lately repeated before the Royal 
Society - 
— — A plain and eafy experiment to confirm Sir Ifaac 
Newton’s dodtrine of the different refrangibi- 
lity of the rays of light 
- Remarks on the fecond paper in the hiflory of 
the Royal Academy of Sciences for 1711, 
concerning the caufe of the variation of the 
barometer 
An experiment to prove an interfperfed vacuum 
— Inftances of a very great and fpeedy vegetation 
of turnips - 
* Experiments tried with M. Yillette’s burning 
concaye * 
— - A way for myops to ufe telefcopes without eye 
glafles, and becoming as ufeful to them, and 
fometimes more, than a combination of glaffes 
An account of fome experiments to find how 
much the refiftance of the air retards falling 
bodies - 
— Further experiments 
* An account of an experiment to fliew, by a new 
proof, that bodies of the fame bulk, do not 
contain equal quantities of matter, and, there- 
fore that there is an interfperfed vacuum 
— A companion of Paris weights, as they are now 
ufed, with Enelilh weights 
4 H 
Tranf. 
XXXVI 33 
— 137 
— 204 
XXXV II 16 
• 261 
XXXVIII 70 
■ — IOI 
— 334 
— 405 
XXXIX 201 
XXIX 433 
448 
667 
Abridg, 
VI 414 
VI 2 1x3 
— - *47 
IV 275 
VI 2 139 
VIII 132 
— 555 
IX 339 
VIII 245 
IV 173 
— 481 
XXX 970 
— 717 
IV 2 10 
— “ *73 
— 974 
— - 3 1 ! 
— 976 
IV 198 
— 1017 
— 1S8 ( 
— - 1071 
IV 2 175® 
-- 
XXXI 81 
— - 157 
— 112 
VII 4 46 
Desa*. 
