CONTENTS. ^^ 



Page 

 Col Chesney on the Tubular or Double Life-boat, invented by Henby 



Richardson, Esq. of Aber-Himant, Merioneth J J^ 



Mr. A. Crosskill on Reaping Machinery • • • • 



Mr. William Fairbairn on the Progress of Mechanical Science. Address 



delivered on the opening of the business of the Section J 



Mr J. A. FoRSTER on Improvements in Organ Machinery H? 



Mr. Joseph Hopkinson on the Steam-Engine Indicator 118 



on a Patent Safety Alarum for Steam-Boilers .... 119 



on an improved Compound Patent Safety-Valve for ^^^ 



Steam-Boilers V" 



on an improved Patent Steam-Engine Boiler desig- 



nated the Greatest Resistance Steam-Boiler 



Mr. George Locking's brief Description of Locking and Cook's Patent Ro- 



tatory Valve-Engine, and of its advantages 



Mr. Richard Roberts on certain Improvements in the Constmction of Steam 

 Ships, Life-boats, and other Vessels; also m Steam-Boders, PropeUers, 



Anchors, Wmdlasses, and Metalhc Casks 



Mr. Bernard Samuelson on Recent Improvements in Machines for Tilhng ^^^ 



Land 



Rev. W. ScoRESBY on Railway Accidents by Collision, and Suggestions for ^^^ 



their Prevention 



Rev. Francis F. Statham on the Consumption of Smoke in Furnaces and 



Manufacturing Premises • 



on Railway CoUisions, with Suggestions for then: 



Prevention .' ' 



Mr. James Thomson on an Experiment^ Apparatus constructed to determme 



the Efficiency of the Jet Pump ; and a Senes of Results obtamed 130 



Mr. W. Sykes Ward on an Electric Semaphore for Use on Railways 131 



Capt. F. Wilson on a New Wheelbarrow 



TOO 



Index I.— To Reports on the State of Science • • • • ^'*^ 



Index II.— To Miscellaneous Communications to the Sections 



ADVERTISEMENT. 



The Editors of the preceding Notices consider themselves responsible only for 

 the fidelity with which the views of the Authors are abstracted. 



