CON 
Guinea, Weft Indies, and Mediterranean, 
with the latitudes and longitudes at the time of 
obfervations - Douglas 
— Traci of his majefty’s armed'brig Lion, from 
England to Davis’s Streights and Labrador ; 
with obfervations for determining the longi* 
ftides by fun and moon, and errors of com- 
mon reckoning; alfo the variation of thecom- 
pafs and dip of the needle, as oblerved during 
the laid voyage in 1776 Pickerfgili 
See Needle . 
Conception. An account of thediffeftion of a bitch 
whole cornua uteri being filled with the bones 
and flefh of a former conception, had, after a 
fecond conception, the ova affixed to feveral 
parts of the abdomen - Jlnon. 
A letter on a falfe conception Cole 
Account of the bones of a foetus voided per 
anum, fome years after conception Morley 
An account of an extra-uterine conception 
- Myddelton 
Concoction. A ffiort difcourfe concerning concoc- 
tion - - Haver j 
Concretions (Anatomy). The figures of fome ve- 
ry extraordinary calculous concretions found in 
the kidney of a woman - Lucas 
Concretions (Natural hiftory). A letter concern- 
ing certain chalky tubulous concretions, called 
malm - - Needham 
— An account of two giants eaufways, or groups 
of prifmatic bafaltine columns, and other 
volcanic concretions, in the Venetian ftate 
in Italy ; with fome remarks on the cha- 
rafters of tliefe and other fimilar bodies, and 
on the phyfical geography of the countries in 
which they are found - Strange 
Conductor. An account of the appearance of 
lightening on a conduftor, fixed from the fum- 
mit of the main-maft of a fhip down to the 
water - - Winn 
— An account of the effefts of lightening on a 
houfe which was furnifhed with a pointed con- 
duftor, at Tenterden in Kent; to which are 
added, fome remarks by Mr. Henley Hajfenden 
s— New experiments and obfervations on the na- 
ture and ufe of conduftors Wilfon 
Tranf. 
1! 5 
Abrido. ! 
LX VI 18 
LXVIII1057 
XIII 183 
XV 1045 
II 9O4 
III 220 
XIX 486 
XLIII336 
XI 1010 
XXI 2 33 
111 95 
XLIV 465 
XI 1001 
XLII 634 
VIII 732 
LXV 5 
LX 188 
LXV 336 
LXVIII M 5 
Ex- 
