Galbraith's Mathematical and Astronomical Tables. 203 



the earth had precipitated themselves into the bed of the ri- 

 ver Baldayaco, and obstructed its course, the sudden and im- 

 impetuous overthrow of which had destroyed the lands and 

 houses of the people of Santiago, forming its waters even as far 

 as Put u mac, having been in its course increased by tributary 

 streams to the number of 90. The inhabitants had fled in great 

 terror to the highest mountains. Almost the whole of the can- 

 ton was overspread with large abysses, and the extreme of wretch- 

 edness prevailed throughout the country. 



NEW PUBLICATIONS. 



1 . Mathematical and Astronomical Tables for the Use of Students in 

 Mathematics, Practical Astronomers, Surveyors^ Engineers, and 

 Navigators, Second Edition, greatly enlarged and improved. 

 By William Galbraith, A. M., Teacher of Mathematics, Edin- 

 burgh. Edinburgh: Oliver and Boyd ; Simpkin and Marshall, 

 and J. W. Norrie «& Co. London. 



On the publication of the first edition of this work, we re- 

 commended it strongly to the notice of those for whose use it 

 was intended, and its success has been in accordance with our 

 anticipations. The second edition is greatly enlarged by the in- 

 troduction of much valuable matter, seldom to be met with in 

 the usual publications on corresponding subjects. The author 

 appears to "have spared no pains in improving and enlarging his 

 work. The ordinary Logarithmic Tables are much superior to 

 those usually employed, by having proportional parts attached 

 to the greater part of them, and almost always differences when 

 the former are wanting. The table of sines, tangents, and se- 

 cants, is in accordance with the views of the committee of the 

 Astronomical Society of London, who have recommended double 

 arguments in both arcs and time to be subjoined to tables for 

 Nautical Astronomy, an advantage of great importance in 

 many computations where time is involved. The best edition of 

 Mr Ivory's Table of Astronomical Refractions is given by our 

 author, the most accurate perhaps of all others hitherto pub- 

 lished. The table of reduction of altitudes to the meridian, of 

 the reduction of the sun's observed declination to the solstice ; 

 tables for reducing mean solar to sidereal time ; for correcting 

 the mean places of the stars, of which a pretty extensive cata- 

 logue of 160 is given, comprehending almost all those to the 



