MATHEMATICAL INSTRUMENTS THEIR CONSTRUCTION, ADJUSTMENT, TESTING, AND USE COMPRISING DRAWING, MEASURING, OPTICAL, SURVEYING, AND John Jirls By J. F. HEATHER, M.A. LATE OF THE ROYAL MILITARY ACADEMY, WOOLWICH; AUTHOR OF "PRACTICAL PLANE 99 66 ENLARGED EDITION, FOR THE MOST PART ENTIRELY RE-WRITTEN CROSBY LOCKWOOD AND CO. 7, STATIONERS' HALL COURT, LUDGATE HILL 1884 ADVERTISEMENT. THIS popular treatise on the "Construction, Adjustment, Testing, and Use of Mathematical Instruments appeared originally in 1849, and has since been used continuously in Government military and naval schools; and forms, by authority, part of a midshipman's kit. In presenting it for the tenth time to the public it has been entirely re-written, and full development given to the description, with their most recent improvements, of such mathematical instruments as come within the classes mentioned on either of its title-pages. This has necessitated the division of the subjects into three distinct portions, the second volume being devoted to Optical Instruments, and the third to Surveying and Astronomical Instruments.* To meet, however, the convenience of those schools which have introduced the original work as a text-book, the NINTH EDITION has been stereotyped, and copies of that edition will continue to be supplied as long as the heads of such establishments may require them. * Mathematical Instruments Part III., Optical Instruments, by J. F. H. Mathematical Instruments: Parts IV. and V., Surveying and Astronomical Instruments, by J. F. H. |
