ENGINEERING AND MECHANICS. 31 



FOURTH EDITION. Folio, strongly half-bound, 2i/. 



TRAVERSE TABLES: 



Computed to Four Places of Decimals for every Minute 

 of Angle up to 100 of Distance. 



For the use of Surveyors and Engineers. 



BY 



RICHARD LLOYD GURDEN, 



Authorised Surveyor for the Governments of New South Wales and 

 Victoria. 



%* Published with the Concurrence of the Surveyors- General for Neiv South 

 Wales and Victoria. 



"Those who have experience in exact SURVEY-WORK will best know how to appreciate 

 the enormous amount of labour represented by this valuable book. The computations 

 enable the user to ascertain the sines and cosines for a distance of twelve miles to within 

 half an inch, and this BY REFERENCE TO BUT ONE TABLE, in place of the usual Fifteen 

 minute computations required. This :alone is evidence of the assistance which the Tables 

 ensure to every user, and as every Surveyor in active practice has felt the want of such 

 assistance FEW KNOWING OF THEIR PUBLICATION WILL REMAIN WITHOUT THEM."' 



Engineer, 



In Large 8vo. With Numerous Illustrations. Price 7s. 6d. 



VALVES AND VALVE-GEARING: 



INCLUDING THE CORLISS VALVE AND 

 TRIP GEARS. 



BY 



CHARLES HURST, Practical Draughtsman. 



" CONCISE explanations illustrated by 115 VERY CLEAR DIAGRAMS and drawings and 4 folding- 

 plates . . . the book fulfils a VALUABLE function." A thenceum. 



"MR. HURST'S VALVES and VALVE-GEARING will prove a very valuable aid, and tend to tb* 

 production of Engines of SCIENTIFIC DKSIGN and ECONOMICAL WORKING. . . . Will be largely 

 sought after by Students and Designers." Marine Engineer. 



" USEFUL and THOROUGHLY PRACTICAL. Will undoubtedly be found of GREAT VALUK to 

 all concerned with the design of Valve-gearing." Mechanical World. 



"Almost EVERT TYPE of VALVE and its gearing is clearly set forth, and illustrated in 

 Bach a way as to be READILY UNDERSTOOD and PRACTICALLY APPLIED by either the Engineer, 

 Draughtsman, or Student. . . . Should prove both USEFUL and VALUABLE to all Engineers 

 seeking for RELIABLE and CLEAR information on the subject. Its moderate price brings it 

 within the reach 01 ulL" Industries ami Iron. 



" Mr. HURST'S work is ADMIRABLY suited to the needs of the practical mechanic. . . . 

 It is free from any elaborate theoretical discussions, and the explanations of the varioos 

 types of valve-gear are accompanied by diagrams which render them EASILY UNDERSTOOD." 

 The Scientific American. 



LONDON: CHARLES GRIFFIN & CO., LIMITED, EXETER STREET, STRAND, 



