viii CONTENTS. 



DECEMBER, 1812. 



Engravings of the following Subjects : The Growth and Increase ofTrees. 

 33y jVIrs. Agnes Ibbetson. Apparatus for the Manufacture of Prussian 



Blue. 



I. On ihe Growth or Increase of trees : by Mrs. Agnes Ibbetson. 241 



II. Some Horticultural Observations, selected from French Authors. By 

 the Kight Hon. Sir Joseph Banks, Ba, t. K. B, P. K. S. &c. - 251 



ill. Farther Experiments and Observations on the Action of Poisons on the 

 Animal System. By B, C. Brodie, Esq. F. R.S. Communicated to the 

 Society for the Improvement of Animal Chemistry, and by them to the 

 Boyal Society. - - - - ' - - 238 



IV. Description of an Apparatus by means of which all bad Smell may be 

 avoided in raanufacturmg Prussian Blue : by Mr. d'Arcet. - 268 



V. Extract from a Letter addressed to Mr. d'Arcet by Mr. Dufaud, Director 

 of the Iron Works at Montalaire, near Creil. - - 27I 



VI. On the liquid Sugar of Starch, and the transmutation of sweet Sub- 

 stances into fermentable Sugar, by Mr, Vogel, Abridged by^^Mr. Bouillon- 

 Lagrange. _ - - _ ^ _ 2/4 



Vil. Abbtrsct of a Paper on the Deliquescence of Bodies j by Mr. Gay 

 Lussac, - - - - - - - 282 



VIII. Remarks on the Correspondence between Dr. Bostock and Dr. 

 Marcel, on the subject of the uncombined Alkali in the animal Fluids. In 

 a Letter from George Pearson, M. D. F. R. S. &c. - - 285 



IX. On Hygrology, Plygrometry, and their connexions with the Phenomena 

 observed in the Atmosphere. By J. A. De Luc, Esq. F. R.S. 221 



X. MeteorologicalJournal. ----- 304 



XI. On ihe Nature and Detection of the difi'erent metallic Poisons. In a 

 Letter iVom Mr. Charles Sylvester. - - _ 306 



XII. On faciliating the Emission of Roots from Layers. By T. A. Knight 

 Esq.Pres. H. S. - - - - - - 314 



XIII. On the Cultivation of the Jamrosade (Eugenia Jambos L,) in the 

 National Garden at Paris, abridged from the account given by M. Thouin, 

 in the Annales du Museum, V. 1, p. 35/. By Richard Anthony 

 S.disbury, Esq. F. R. S. &c. - - - - 315 



XIV. Letter from Dr. Tathil on the Sugar from Potatoe Starch. - 310 

 Scientific News* • - ' - - * - 320 



SUP- 



