VIU CONTENTS. 



Page 



Mr. Smith on Propelling Boats 98 



Mr. E. BowNESS on a Plan for drawing Coals from Pits without Ropes or Chains 98 



Mr. J. G. BoDMER on a New Apparatus for Starting Heavy Machinery 98 



Dr. Green on Nasmyth's Steam Pile Driver 98 



Mr. J. G. BoDMER on a New Furnace Grate 98 



Mr. James Wylson on the Scantlometer 99 



Rev. W. Taylor's Explanation of an Apparatus, invented by Mr. Littledale of 



York, by which the Blind can WTite and read 99 



Mr. O. Byrne on the Improved Compasses of M. De Sire Lebrun, and the Cold. 



drawn Pipes of M. LeDru 99 



's Explanations of the Barege Mobile, or Canalization of Rivers, 



and of the Grenier Mobile, or moveable Granary for preserving Corn 99 



Sir T. Dean on the Construction of Buildings for the Accommodation of 



Audiences 99 



Mr. John Bateman on the Collection of Water for the Supply of Towns 100 



Mr. I. Hawkins on the CEconomy of Artificial Light for Preserving Sight 100 



Dr. W. ScoRESBY on a new Process of Magnetic Manipulation, with its Effects 



on Hard Steel and Cast Iron 100 



Mr. Paxton on the Great Fountain at Chatsworth, erected by the Duke of 



Devonshire 102 



Mr. B. G. Sloper on the Filtration of Water for the Supply of Towns 102 



Rev. F. O. Morris on a Plan for Preventing the Stealing of Letters by Letter 



Carriers 1 03 



Mr. Henry Perigal on the probable Mode of Constructing the Pyramids 103 



ADDENDUM. 



Mr. H. F. Talbot on Photography 105 



Mr. William West on Mineral Springs and other Waters of Yorkshire 105 



Mr. Henry Biggs on Industrial Education 112 



Index 113 



List of Members. 



