M I C 
32 1 
of the micrometer - - Be vis 
— Def option of a method of meafuring differences 
of right afcenlion and declination, with Dol- 
lond’s micrometer, together with other new 
applications of the fame - Mofkelyne 
.. — Directions for ufing the common micrometer, 
taken from a paper in the late Dr. Bradley’s 
hand -writing - - Bradley 
— Account of a new micrometer - Bofcovich 
Account of a new inltrument for meafurin 
fmall angles, called the prilmatic micrometer 
Mafkelyne 
— A description of two new micrometers 
Ramfden 
Microscope. A defcription of a microfcope of a 
new fafhion, by the means whereof there has 
been feen an animal leffer than any of thofe hi 
tnerto feen - - Anon . 
Letter about the making of microfcopes with 
very fmall and fingle glaffes, and of fome 
other inftruments - - Butterfield 
A letter giv ng a further account of his water 
microfcope - - Gray 
Letter concerning making water fubferv’ent to 
the viewing both near and diflant ob'eCls, 
with the defcription of a natural refleding mi 
crofcope - - Gray 
The defcription and manner of ufing a late in- 
vented fet of fmall pocket microlcopes made 
by James Wilfon, which with great eafe are 
applied in viewing opake, tranfparent, 
liquid objects, &c. - It 
Some account of Mr. Leeuwenhoek’s curios 
microfcopes - - Folke. 
Account of a catoptric microfcope Barkef 
An account of Mr. Leeuwenhoek’s microfcope: 
Baket 
microfcope 
Observations on fallacies 
compound microfcopes 
obje&s 
in vi 
ifiofi 
Tranf. 
XL VIII i 9 o 
Abridg. 
LXI 53^ 
LXII 46 
LXVII 7S9 
~ 799 
LXIX 419 
III 842 
I 207 
XII 1026 
— 208 
XIX 353 
— 209 
— 539 
— 195 
XXIII 1241 
IV 199 
1 XXVII 24 
— 203 
1 XXXII 446 
'XXXIX259 
VI 129 
VIII 120 
XLI 503 
— 121 
! XL111239 
X 29 
2 XLI II 382 
— 761 
t 
1 
J LV 246 
1 
S s 2 
