100 
CXT 
CLO 
proportion of a diameter of a circle to its cir- 
cumference may eafily be computed to a great 
number of places of figures Hutton 
Citron. Some -hortulan communications about the 
curious engrafting of oranges and lemons, or 
citrons, upon one another’s trees ; and of one 
individual fruit, half orange and half lemon, 
growing on fuch trees, &c. - Anon . 
Civita Turchino. An account of feme fubter- 
raneous apartments with Etrufcan inscriptions 
and paintings, difcovered at Civita Turchino 
•in Italy - - Wilcox 
Claret. A further account of fome experiments of 
injecting claret, &c. into the abdomen, after 
cupping - - Warrick 
Clays. An ingenious prop*fal for a new fort of maps 
of countries $ together with tables of lands and 
clays, fuch chiefly as are found in the north 
parts of England - Lifter 
- — - Ail account of curious wafps nefU made of clay 
in Pennfylvania - Bartram 
— Remarks an a petrified echinus of a fingular 
kind, found at Bunnan’s Land, in the parifli 
of Bbvingdon in Hertfordfhire, which is a 
' clay, and fuppofed to have been brought with 
the chalk dug out of a pit in the field Parfons 
Cletsydra. A defctiption of .a clepfydra, or wa- 
ter-clock - - Hamilton 
Cliffs. Extradl of a letter containing obfervations 
on the precipices and cliffs on the north -eaft 
coafl of Norfolk - Arderon 
Climate. An efTay upon the caufes of the different 
colours of people in different climates Mitchell 
Clifton. See Coins, 
Circulation of the Blood. See Blood . 
Clock. A new invention of a clock ascendant on a 
plane inclined - De Gennes 
A letter wherein Mr. Williamfon aflerts his 
ri°;ht to the curious and ufefui invention of 
making clocks to keep time with the fun’s ap- 
parent motion - Williamfon 
«— A contrivance to avoid the irregularities in a 
clock’s motion, occafioned by the adlion of 
heat and cold upon the rod of the pendulum 
- Graham 
An account of fome obfervations made in Lon- 
don by Mr. Graham, and at Black River, in j 
Tranf. 
I Abridg. 
LXVI 476 
M 553 
II 68s 
LIII 127 
XLIX 485 
XIV 739 
XLIII 363 
— 45 ° 
XI 847 
XLIX 155 
XLIV t 0 ] 1 
X428 
275 
XLIII 102 
— 5 8 9 
XI 926 
XII 1006 
I 468 
XXX 1080 
iv 394 
XXXIV 40 
VI 297 
f 
i 
Jamaica, 
