CONTENTS. 

 VOL. VI. 



1850. 



Researches into the Structure of the Spinal Chord. By Jacob Lock- 9 4 ^ 



hart Clarke, Esq page 1 ^ • 



On the Action of Nitric Acid on various Vegetables, with a more par- 

 ticular examination of Spartium scoparium, Linn., or Common 

 Broom. By John Stenhouse, Esq., F.R.S 3 



Results of Observations on tlie Distribution of Temperature in the 

 Alps. By Professor Hermann Schlagintweit 6 



1851. 



Researches on the Distribution of Vegetables in the Alps compared 

 with the Differences of Climate, and on the Periodical Development 

 of Plants at different heights. By Adolph Schlagintweit 12 



On the Results of Perio(hcal Observations of the Positions and Di- 

 stances of Nineteen of the Stars in Sir John Herschel's Lists of 

 Stars favourably situated for the investigation of Parallax contained 

 in Part III. of the Phil. Trans, for 1826, and in Part I. for 1827. 

 By Lord Wrottesley, F.R.S., &c 13 



Magnetic Survey of the Eastern Archipelago. By Captain C. M. El- 

 liot, of the Madras Engineers 15 



On the Oxidation of Ammonia in the Human Body, with some re- 

 marks on Nitrification. By Henry Bence Jones, M.D., F.R.S,, &c. 22 



Description of a Muscle of the striped variety, situated at the poste- 

 rior part of the choroid coat of the Eye in Mammals, with an expla- 

 nation of its mode of action in adapting the Eye to distinct vision 

 at different distances. By George Rainey, Esq., M.R.C.S 23 



, On the Supply of Water from the Chalk Stratum in the neighbour- 

 hood of London. By John Dickinson, Esq., F.R.S 25 



