CONTENTS. 



which are subjoined some Observations on the red Colour 



given to Turnsole by the Resins 181 



On prime and ultimate Ratios ; with their Application to 



the first Principles of the Jluxionary Calculus .. 186 



Comparative Examination of the Mucous Acid formed by 



the Action of the Nitric Acid: 1st, on the Gums; 2dly, 



on the Sugar of Milk 191 



On the Prussic and Prussous Acids J 9<5 



Memoir on the Muriate of Tin 205 



The Case of a Man who died in consequence of the Bile of 

 a Rattlesnake : with an Account of the Effects produced 



by the Poison 209 



On extracting liquid Sugar from Apples and Pears . . 218 



On Musical Time 220 



Comparative Analysis of Socotrine and Hepatic Aloes 22 1 



Analysis of Aloes — . . 224 



A Fatal Case of Inguinal Hernia . . . . . * . . 230 



On the New Mountain Barometer 24 1 



On the Land Winds of Coromandel, and their Causes 243 

 Hints respecting a New Theory on the Orbits of Comets 253 

 Description cf a Machine for securing Persons attempting 

 Depredations without affecting their Life or Limbs 256 

 An Account of a New Method of increasing the charging 



Capacity of coated Electrical Jars 259 



Method of constructing commodious Houses with Earthen 



Walls 263 



Memoir on the Alterations which the Light of the Sun un- 

 dergoes on passing through the Atmosphere . .. 271 

 On the Application of the Barometer for indicating the 

 Weather, and for measuring of Heights in the Atmo- 

 sphere 275 



(Economical Process for the Preparation of the sublimed 

 Muriate of Mercury {Calomel): to which is subjoined an 

 easy Method of purifying the Calomel used in Com- 

 merce 281 



Description of a Process by means of which we may metal- 

 lize Potash and Soda without the Assistance of Iron 283 

 Reflections on some Mineralogical Systems 286, 378, 413 



On 



