VUl CONTENTS. 



Page 



GJaucolite, a new Mineral Species— EflFects of Oil of Croton 



on the Eye — Clilorocyanic Acid 463 



Examination of Cinchalona — Common Sugar existing in the 



Form of Grains in the Flowers of Rhododendron Ponticura 464< 



Meteorological Observations 465 



by Mr. Howard near London, 



Mr. Giddy at Penzance, Dr. Burney at Gosport, and Mr. 



Veall at Boston 468 



Index 469 



PLATES. 



I. An Engraving of Mr. Davies's Communication on the Symmetrical 



Properties of Plane Triangles. 



II. A Plate illustrative of Mr. R. C. Taylor's Remarks on the Natural 



Embankments of the Norfolk and Suffolk Coast of the German 

 Ocean. 



III. A Plate illustrative of Professor Hansteen's Observations on the 

 Polar Lights. 



rV'. A Plate illustrative of Mr. John Taylor's Rain-gauge. 



