HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 43, PICCADILLY, W. 717 



14322 ROBERTS- AUSTEN" (Sir William Chandler, F.R.S., Royal Mint} ALLOYS RESEARCH 



COMMITTEE: SECOND REPORT, with 5 woodcuts, 8vo. (pp. 36), sewn, Is Qd [1893] 



14323 : FOURTH REPORT, with 16 plates, 8vo. (pp. 70), sewn, 3s 6d [1897] 



14324 - : FIFTEI [and LAST] REPORT (STEEL), with 22 photcmicrographic plates and 



6 other illustrations, SVG. (pp. 68), sewn, 4s Qd [1899] 



This report is of especial importance on fractures of steel rails. 



' The work of alloys-research he initiated is now carried on at the National Physical Laboratory. The practical value 

 of these labours led the council of the Institution of Mechanical Engineers to enrol him an honorary life member.' D.N.B. 



14325 CANADA'S METALS : a Lecture at the Toronto Meeting of the British Association, with 



6 plates and coloured map, 8vo. cl., with author's inscr., 2s 1898 



14326 CANTOR LECTURES on ALLOYS, with 40 illustrations, roy. 8vo. sewn, with author's inscr., 



2s Qd 1893 



14327 CANTOR LECTURES on ALLOYS used for COINAGE, with 2 plates of ancient gold and silver 



trial-plates, and woodcuts, roy. 8vo. sewn, 2s Qd 1884 



14328 On CERTAIN PROPERTIES COMMON to FLUIDS and SOLID METALS, with 14 woodcuts* 



imp]. 8vo. sewn, Is Qd 1886 



14329 - On the DIFFUSION of METALS : Bakerian Lecture, with 2 plates, and 7 illustrations, roy. 

 4to. (pp. 33), sewn, with author's inscr., 2s Qd 1896 



14330 The EXTRACTION of NICKEL from its ORES by the MONO PROCESS, with folding plate 



and 3 other illustrations, 8vo. (pp. 18), sewn, 2s 1898 



A description of Ludwig Mend's process for manufacturing pure nickel (v. No. 11093 ante). 



14331 On the HARDENING and TEMPERING of STEEL : a Lecture, with 1 1 woodcuts, impl. 8vo. 



(pp. 51), sewn, with author's inscr., 2s Qd 1889 



14332 NOTE on the EXPERIMENTAL ILLUSTRATION of the EXPANSION of PALLADIUM attending 



the Formation of its Alloy with Hydrogenium, with woodcut, 8vo. (pp. 3), sewn, with inscr. to 

 Prof. N. Story-Maskelyne, F.R.S., Is Gd 1869 



14333 PRESIDENTIAL ADDRESS to the IRON and STEEL INSTITUTE, 8vo. (pp. 28), sewn, ]sQd 1900 



14334 The RARER METALS and their ALLOYS, with plate and 8 woodcuts, 8vo. (pp. 35), sewn, 



with author's inscr., 2s 1895 



14335 ROBERTSON (Abraham, D.D., F.R.S., Savilian Prof. Geometry, Oxon.) The BINOMIAL 

 THEOREM DEMONSTRATED by the PRINCIPLES of MULTIPLICATION, 4to. (pp. 24 1, sewn, 4s Qd 1795 



Added are .-Experiments and Observations to investigate the Nature of a Kind of Steel called Wootz, etc. etc., by 

 GEORGE PEARSON, M.D., F.R.S. (pp. 25); On Welding Cast Steel, by SIR THOMAS FRANKLAND (pp. 2). 



14336 SECTIONUM CONICARUM Libri VII ; accedit TRACTATUS de Sectionibus Conicis, et de 



Scriptoribus qui earum Doctrinam tradiderunt ; with 45 folding plates, 4to. cl., Qs Qd Oxonii, 1792 



' His chief work, with an exhaustive survey of the history of the study.' D. N. H. 



14337 ROBERTSON (C., M.D., Deputy Surgeon-Gen., I.M.D.) MODERN GEOGRAPHY and the 

 COPERNICAN HYPOTHESIS, with 2 plates, and diagrams, 8vo. boards, 2s Qd Stirling, 1908 



Intended to show the fallacy of the Coperniran System. The author published another geocentric work in 1897 : ' Is 

 the Earth a Planet ' (v. No. 4038, ante). 



14338 ROBERTSON (John, F.R.S. , Librarian to the Royal Society) TREATISE of such MATHEMATICAL 

 INSTRUMENTS, as are usually put into a PORTABLE CASE, with Account of the Authors who have 

 treated on the PROPORTIONAL COMPASSES and SECTOR, first edition, with 1 folding plates, 8vo. 

 contemporary calf, with fine armorial bookplate of Sir Robert Throc/cmorton, Bart., Qs 1747 



14339 ANOTHER COPY, old calf (joints cracked), 5s 



14340 SECOND EDITION, with many Additions, and Appendix of the Description and Use of 



GUNNER'S CALLIPERS, with 9 folding plates, 8vo. old calf (back damaged), Qs Qd 1757 



14341 THIRD EDITION, with the Description of, and Precepts for the Delineation of, SHIP-GUNS 



and SEA MORTARS, and brief Account of AUTHORS who have wrote on the PROPORTIONAL 

 COMPASSES and SECTOR, with 12 folding plates, 8vo. contemporary sheep (cracked), 8s 1775 



Tho introduction of the above editions contains an interesting historical account of inventors of mathematical 

 instruments. 



According to Chasles, Robertson was the first to discover the theorem that in stereographic projection the angle 

 between two circles of the sphere equals the angle between the two circles on projection. 



14342 ROBERTSON (P., Naval Instructor H. M.S. Excellent) The THEORY and PRACTICE of GREAT 

 CIRCLE SAILING under one General Rule*, with Examples, 8vo. (pp. 24), sewn, 2s 1855 



14343 ROBINET (Sterchano) PROCEDE pour le BATTAGE des COCONS, ou Moyen d'obtenir des Cocons 

 le plus de Soie possible, 8vo. (pp. 28), sewn, 2s Qd 1843 



14344 RECHERCHES sur la PRODUCTION de la SOIE en FRANCE, VI e MEMOIRE : Nouvelles 



Etudes sur le Cocon, 8vo. (pp., 81), sewn, 3s Qd 1856 



14345 ROBINS (Benjamin, F.R.S., Engineer General to H. E. I. C.) MATHEMATICAL TRACTS, 

 published [with LIFE (pp. 42)] by JAMES WILSON, M.D., with 3 plates and diagrams, 2 vols. 8vo. 

 old calf gilt (joints of v. I cracked) ; VERY RARE, 1 . 10s 1761 



CONTENTS : 1. New Principles of Gunnery, with several subsequent Discourses on the same Subject, the greatest Part 

 never before printed [including the invention of the Ballistic Pendulum]. II. Discourse on the Methods of Fluxions, and of 

 Prime and Ultimate Ratios, with other Miscellaneous Pieces. 



' Robins was one of the most accurate and elegant mathematical Avrit^rs that our language can boast of; and he made 

 more real improvements in artillery, the flight and the resistance of projectiles, than all the preceding writers on that 

 subject.' Dr. Charles Button, F.R.S. 



His Discourse on . . . Fluxions (v. II) is a reply to Bp. Berkeley's Analyst (v. Nos. 347 and 6144-5, ante), and 'a very 

 clear, neat, and elegant performance ' (Dr. Hulton). He was an unsuccessful competitor for the professorship of fortification 

 and gunnery at R.M.A. Woolwich against John Muller (Nos. 12268-73 ante}, whose poAverful influence secured him the 

 position. Robins's work on gunnery is said to have been due to this disappointment, ' as he wanted to show to the 

 world, what sort of man he was that they had rejected.' V. Nos. 4044-5 ante. 



14346 ROBINS (Edward Cookworthy, F.S.A., F.R.I.B.A.) On the VENTILATION and WARMING of 

 CHEMICAL LABORATORIES and Applied Science Schools generally, 8vo. (pp. 14), sewn, Is 6d 1885 



