LIG 
of light and colours - Linus 
Coniiderarions on the reply, together with 
further directions how to make the experi- 
ments controverted aright - Newton 
Another letter relating to the fame argument 
Newton 
A particular anfvver to Mr. Linus’s letter 
about an experiment relating to the new doctrine 
of light and colours - Newton 
Letter concerning Mr. Newton’s experiments 
of the coloured fpedtrum, together with fome 
exceptions againft his theory of light and 
colours - Lucas 
Anfwer - - Newton 
A demonftration concerning the motion of 
light - - - Romer 
Some queries concerning the nature of light and 
diaphanous bodies - - Halley 
— An account of fome experiment of light 
and colours formerly made by Sir Ifaac New- 
ton, and mentioned in his opticks, lately re 
peated before the Royal Society Defag'diers 
A plain and eafy experiment to confirm Sir 
Ifaac Newton’s do&rine of the different refran- 
gibility of the rays of light - Defaguliers 
Some experiments made in order to dilcover the 
height to which rockets may be made to afeend, 
and to what diifance their light may be feen 
- - Ellicctt 
Difcourfe concerning the caufe of the different 
refrangibility of the rays of lig»ht Melv'il 
•A eomparifon between the notions of M. de 
Courtivron and Mr. Mel'vil concerning the 
difference of refrangibility of the rays of light 
- Clair aut 
An account of fome experiments concerning the 
different refrangibility of light - Dollond 
Diflertation on the aberration of light refradted 
at fpherical fuperficies and lenffs KiingenjUerria 
A letter containing a theorem of the aberration 
of the rays of light refracted through a lens, 
on account of the imperfedtion of the fpherical 
figure - - Majkelynt 
Rules and examples for limiting the cafes in 
which the rays of refradled light may be re- 
united into a colour! efs- pencil - Murdoch 
M m % 
27 3 
TtxnL \ 
— 499 
Abrid 1* 
— 162 
— 500 
— 503 
— 164 
XI 556 
— *63 
— 692 
— 698 
— 165 
— 168 
XII 893 
— 409 
XVII 998 
II 252 
XXIX 433 
IV ,73 
— 448 
• — 481 
XLVI 578 
X 202 
XLVIII.261 
— 776 
L 733 
s 
LI 944 
LII 17 
Lin 173 
Difficulties 
