(384) 
XI. Some, Experiments about Free^ittg. By 
Mr, Defmafters. Commnnicated by Dr. Wil- 
liam Mufgrave, Felh Coll. Fhyf. and K. S. 
A Tube of \ of an Inch Diameter being fiU'd with 
Water to the height of two Inches, and let to freeze 
in a Mixture of Snow and Salt, the Water, when per- 
fedly frozen, appear'd of an Inch, above the Mark it 
flood at before freezing. 
Another Tube, of almoft an Inch Diameter, being fiird 
with Water to the height of Six Inches, and fet to ireeze, 
as before, rofe I of an Inch above the Mark. 
It was obfeivable, that when the Water thus (et in 
Snow and Salt began to freeze, a great many fmall Bub- 
bles continually rofe from the Bottom. 
XIL A Catalogne of EleBrical Bodies. By the 
late Dr. Rob Plot, F. K.S. 
NOn folum Succinum & Gagates alledant corpuf- 
cula, fed & Adamas, Saphirus, Carbunculus, Iris 
gemma , Opalus , Amethiftus, Pfeudo-adamas Bnfloli- 
enfts, Berillus & Chriftallus : Item Hyacinthus, Grana- 
tus Bohemicus, Vitrura & ex vitro five Chryftallo gem- 
mae adulteratse, vitrum Antimonii & Saturni, omnes flu- 
ores ex fodinis, Belemnites, Sulphur, Maftix, Cera fi- 
gillaris ex lacca, Refina durior, Arfenicum fed imbecil- 
lius, & Cselo ficco Sal gemmae, Lapis Specularis, & 
Alumen rupeum. 
XIII. An 
