vi CONTENTS. 



JULY, 1809. 



Engravings of the following Objects: 1. Figures to illustrate the Vivification of 

 Is, h\ Mrs. A. Ibbetson: 2. A very sensible Hygrometer, by Lieutenant 

 Henry Kater: 3. An improved Hygrometer, by the same gentleman. 



I. On the Impregnation of the Seed, and first Shooting of the Nerve of Life, 

 in the Embryo of Plants. In a Letter from Mrs. A. Ibbetson - 161 



II. On the Perspiration of Plants. By the same Lady - - 195 



III. On the Analysis of Sulphate of Barytes. By Mr. James Thomson. Com- 

 municated by the Author. - - - 174 



IV. Experiments on the Expansion of moist Air raised to the boiling Tempe* 

 rature. In a Letter from John Gough, Esq. - - 182 



V. An Essay on Manures. By Arthur Young, Esq. F. R. S. - 187 



VI. Table of the Rain that fell at various Places in the Year 1808, by the 

 Rev. J. Blanchard, of Nottingham ; with a Meteorological Table for the 

 same Year, by Dr. Clarke, of that Town - - - 197 



VII. Observations on Sulphuric Ether, and its Preparation ; by Mr. Boullay, 

 Apothecary at Paris - - - - - 201 



VIII. Investigation of a Problem in the Doctrine of Permutations. By Mr. 

 Peter Barlow ----- 203 



IX. Description of a very sensible Hygrometer. By Lieutenant Henry Kater, 

 of his Majesty's 12th Regiment - - , - 207 



X. Description of an improved Hygrometer. By Lieutenant Henry Kater, of 

 his Majesty's 12th Regiment - - - , 211 



XL On the Germination of Seeds. In a Letter from Mr. J. Acton, of Ipswich 



214 



XII. Analysis of the Kaneelstein ; by Professor Lampadius - 231 



XIII. Observations on a Lunar Rainbow ; # by L.Cordier, Mine Engineer [ ib. 



XIV. On the Want of Tables of the Proportions of the constituent Principles 

 of Salts, and on the Luminous Smoke from Lead Smelting-Houses. In a 

 Letter from a Correspondent - 232 



Scientific News - 233 



Meteorological Table - 240 



/ 



AUGUST, 



