CONTENTS. 



On the Influence of the Atmosphere in certain Diseases 68 

 Memoir on the Action of Elastic Fluids 7/po?z Meat 10, I09 



On Heati7ig Buildings by Steam 76 



On the Electricity of Minerals 81 



Experiments and Observations on the different Modes in 



which Death is produced by certain vegetable Poisons 85, 



J71 

 History of fatal Effects from the accidental Use of White 



Lead 04 



Memuir on the Existe?ice of a Combiiiatio.t. of Tannin and a 



vegetable Matter in some Vegetables lOO 



On a Case of nervous Affection cured by Pressure of the Ca- 

 rotids; tvith some physiological Remarks .. .. 105 

 Letter from Dr. Hutton on the Calculations for ascertain- 

 ing the mean Density of the Earth 112 



Description of a new Method of applying the Filtering 



Stone for piirifying Water 11 6f 



Method of raising a loaded Cart when the Horse in the 



Shafts has fallen 1 1 7 



Method of Ventilating Mines or Hospitals, by extracting 



the foul Air from them , 1 20 



Description of a7i improved Micrometer 127 



Observations on some of the Strata in the Neighbourhood of 



London, and on the Fossil Remains contained in them 1 30 

 Report of the National Vaccine Establishment 153, 215 

 Account of the Pitch Lake of the Island of Trinidad I6l 

 An Account of « The Sulphur," or " Souff'riere," of the 



Island of Montserrat .. .. 183 



Description of the Patent reflecting Semicircle, invented by 



S/r Howard Douglas, ij«r^ 186 



Description of an Ownng Outang: with Observations on its 



intellectual Faculties 188 



Notes relating to Botany, collected from the Manuscripts of 



the late Peter Colt,inson, Esq., F R.S 199 



Memorandum on the Subject of the Earl 0/ Elgin's Pur~ 



. suits in Greece 208, 254 



Obser-. 



