'INDEX. 
Cafes of People poifoned by it —- 132, 136-7 
Experiments to know it — — — 1^6 
Fames how pernicious — — — 133 
gives a Silver Colour to Copper — — 135 
Ajh Tree, Infedls on the Bark of >— — — 371 
Attraciim and Repuljion fuppofed greatly inftrumental in the 
Configurations and Cryftals of Salts, &c. 27, 48 
Alternate Fits of each — — 27, 29 
Queries concerning — — 26, &c. 
E. 
Bag-Anma.lt or Pediculus Aquaticus 
Banjlickle, or Prickle back, Loufe of . 
Bark (Peruvian) examined —- 
Bat, the Loufe of — — 
JBaulm, Salt of — •— —« 
Bell-Flower Animal, or plumed Polype 
Animals — — — 
Benjamin, Flowers of *— •— 
Barbery, Salt of — — — —~ —* 168 
Blandy, Mr. poifoned by Arfenic, his Cafe •— — 136 
Borax examined — ■—• — •—- 106 
its Defcription and Ufe — — — 107 
native from Perjia — — — — 108 
Boxes and Phials for Solutions of Salts — —32, 226 
Branchings of Copper refembling thofe on Mocha Stones, 
Dendrit/g , See. how to produce — — 195 to 208 
Brrjfled InJsCl — — —~ — — — 363 
3S3 
377 
171 
406 
165 
306 
33*3 
160 
C. 
t ► 
Camomile, Salt of *—■ —• — — 162 
Camphire examined — — — —* 188 
Candle-light beft to examine Salts by the Microfcope 14 
Carduus (Salt of) examined — — — 178 
Carp, Loufe of — — —- — — 374 
Cafes made of Duckweed by a Maggot — — 415 
Mofs by a Maggot —- •— 416 
Cheltenham Salt —- -— —- - — *49 
Cobalt, what — *— — *■— — 128 
Arfenic and Smalt made from it — — ibid. 
ColleSlion of Solutions how to make and preferve 32, &c. 
Colours of precious Stones whence derived 43, 82, 216 
Con- 
