XVI CONTENTS. 



Page 

 Mr. W. Fleming on the Steering of Ships, in special relation to a new form 

 of Rudder 243 



Mr. P. Le Neve Foster, Jan., Description of the New Branch Canal leading 

 from the Canal Cavour for Irrigating the Province of Lomellina 243 



Mr. W. Froude's Description of an Apparatus for automatically recording 

 the Rolling of a Ship in a Seaway 243 



Mr. John G. Gamble on the Brighton Intercepting and Outfall Sewers .... 245 



Mr. Alexander M'^Callum Gordon on the Distribution of Pure Water to 



Dwellings 246 



Mr. E. J. Hill on Boat-lowering Apparatus 246 



Mr. C. Hodgson on Wire Tramwaj's 246 



Mr. W. Hope on the Estimation of the Error in the Flight of Pleavy Projec- 

 tiles due to the Woolwich System of Rifling 246 



Mr. C. W. Merrifield on the Measurement of Waves 246 



Mr. William Paul on the relative Value of Clarified and Unclarified Sewage 

 as a Manure 247 



Mr. Frederick Ransome on some Recent Improvements in the Manufacture 

 of xVrtiiicial Stone, and tlie Application of such Stone to Constructive and 

 other Purposes 248 



Maj.-Gen. H. Y. D. Scott on Defecating Sewage iind Utilizing the Deposit 

 for the preparation of Lime and Cement 250 



on tlie Agricultural Value of the Lime Compounds 



obtained by Defecating Sewage 250 



. — ■ on the Selenitic Method of making Mortar 250 



Mr. John Smyth, Jun., on an Apparatus for testing the AVater-stopping cfli- 

 ciency of Clay Soils and other Substances under various pressures 250 



Mr. W. SvMONS on a Plan for Railway Amalgamation with Government 



Control ' 251 



Prof. Sir W. Thomson on the use of Steel Wire for Deep-sea Soundings .... 251 



on the Identification of Lights at Sea 251 



' Mr. A. Upward on Drilling-Apparatus for Gas- and Water-Mains 252 



Mr. Thomas Webster on the advancement of Science due to Patented In- 

 ventions 252 



Mr. A. Wylie on the Progress of Invention in Breech-loading Small Arms 

 during the past Twenty Years 252 



EKEATA IN EEPORT FOR 1871- 



In Mr. Peacock's paper, p. 240 (Trans, of Sections) :— 

 In second paragraph, line 2, cMc and. 

 In line 5 of same paragraph, for 8 read 2. 



ERRATA IN THE PRESENT VOLUME. 

 Page 352 (Reports), lino 8 from bottom, /or J<.(i',~ .'.w^tt + JcV . . . ) rend J.(«'i-M,7r 



„ 108 (Trans, of Sections), line 27, for radiatua read radicans. 



