CONTENTS. 



Geological Observations, in Correction of and Addition /• 

 the Paper on the Great Derbyshire Denudation, and the 



Report on Dtri lyshire, &c 93 



Desultory Olservafions concerning certain vegetable Mus- 



cicapce 107 



Case of InJ7iry of the Head 1 1 7 



Communications from Mr. Allan and Mr. Stancliffe 



on Allan's Dividing Instrument II9 



An Answer to the Observations of Dr. Pearson {see page 

 I 64) on certain Statements respecting the alkaline Matter 



contained i?i dropsical Fluids, end in the Serum of the 



Blood 122 



Description of the Diacatoptron 127 



Description of a Cavern near Chudleigh in Devonshire I6I 

 On the different Qualities of IVines, and the Methods of 



preserving and ameliorating them 1 65 



An Apparatus for preventing the Accuynulalion of Air in 



Conduit Pipes, &c. ^c 173 



Memoir upon the Mordants employed in the Art of 



Dyeing 173 



An Accozint of' the Synelting of' Lead 186 



Extracts from Mr. John FAREv's^r^^ Vbhime of Report 



to the Board of Agriculture, on Derbyshire \Q\, '253 



On the Radiation of Cold 208 



A Sketch of the Natural History of ilie Cheshire Rock- 



Salt District .. .. 210,338 



On the Nautical Ephemeris 215 



Substitute for a Repeating IVaich 216 



Description of an Improvement on La Borda's Refecting 



Circle .. .. 249 



Description of an inclosed Grindstone, intended to prevent 



prejudicial Effects to the Persons employed in pointing 



Needles 262 



Description of a Contrivance for conveying Steam from 



Boilers 264 



