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



11469 MARTIN (Benjamin) The DESCRIPTION and USE of both the GLOBES, the ARMILLARY 

 SPHERE, and ORRERY, exemplified in a large and select Variety of Problems in Astronomy, 

 Geography, Dialling, Navigation, Spherical Trigonometry, Chronology, etc., also a NEW 

 CONSTRUCTION of each GLOBE, by an Apparatus exhibiting the Phenomena of the Earth and 

 Heavens exactly as they are, and adapting the same to every Age of the World, with 5 folding 

 copperplates , 8vo. old calf (sound copy], 5s [c. 1762] 



The globes were after the construction by John Senex, F.R.S., 'with many corrections and improvements' by the 

 author. 



11470 - DESCRIPTION and USE of a NEW, PORTABLE, TABLE AIR-PUMP and CONDENSING 

 ENGINE, with a select Variety of capital EXPERIMENTS, with front, and folding plate on copper, 

 containing 43 illustrations of apparatus and glasses, 8vo. (pp. 40), sewn, 4s 1766 



11471 - DESCRIPTION and USE of an ORRERY of a NEW CONSTRUCTION, representing in the 

 various Parts of its Machinery all the Motions and Phoeaomena of the Planetary System ; with 

 a MATHEMATICAL THEORY for calculating the WHEEL- WORK to the greatest Degree of Exactness, 

 8vo. (pp. 28), sewn (plate wanting}. 3s 1771 



11472 -The DESCRIPTION and USE of an UNIVERSAL SLIDING RULE, which, by means of 

 Single and Double Slides, and the Addition of proper Lines, is adapted to answer all Questions 

 in Arithmetic, Mixt- Mathematics, and Philosophy, 8vo. (pp. 24), sewn, 4s Qd n. d. 



11473 ESSAY on ELECTRICITY : an Enquiry into the Nature, Cause and Properties thereof, on 



the Principles of SIR ISAAC NEWTON'S THEORY of Vibrating Motion, Light, and Fire, with the 

 Phenomena of 42 CAPITAL EXPERIMENTS, with Observations relative to the Uses that may be 

 made of this Wonderful Power of Nature, 8vo. (pp. 40), sewn (rare), 8s Qd Bath, 1746 



' His experiments are popular experiments on electrical induction. The essay contains a dim forecast of modern 

 theories in the statement : ' This subtle matter or spirit appears to be of an elastic nature, and acts by reciprocation of 

 its tremors or pulses, which are occasioned by the vibrating motion of the parts of an electric body excited by friction". 

 The preface contains some disparaging remarks on an essay on the same subject by John Freke' (v. No. 8138 ante). 



11474 - ESSAY on the NATURE and SUPERIOR USE of GLOBES . . . also a Candid Examination 

 of the Construction and Use of Planispheres, wherein the Erroneous 'Nature, and many bad 

 Consequences, attending the Use of the Vulgar Projection are pointed out : and the Nature and 

 Use of Globular Projection, with many New Improvements, 2nd Edition, 8vo. (pp. 46) sewn, 

 3s Qd 1758 



11475 [._ j ESSAY on the NATURE and wonderful PROPERTIES of ISLAND [sic] CRYSTAL, respect- 

 ing its manifold and unusual Refraction of Light, with folding copperplate, 8vo. (pp. 16), sewn 

 (rare), 5s n. d. 



Interesting as an early work on polarisation. Being based on Newton's corpuscular theory, it naturally fails to 

 explain the phenomenon, but gives a number of new experiments. The authorship was unknown to Halkett and Laing. 



11476 ESSAY on VISUAL GLASSES (vulgarly called SPECTACLES), wherein it is shewn from the 



Principles of Optics, and the Nature of the Eye, that the COMMON STRUCTURE of those GLASSES 

 is contrary to the Rules of Art, to the Nature of Things, etc. and VERY PREJUDICIAL to the 

 EYES; the Nature of Vision in the Eye explained, and GLASSES of a NEW CONSTRUCTION 

 proposed, 2nd Edition, wiih folding copperplate, 8vo. sewn (rare), 5* 1757 



The author was so successful as a spectaclemaker, that he had to warn people against imitations of his glasses. 



11477 - - EXPLANATION of a NEW CONSTRUCTION and IMPROVEMENT of the SEA OCTANT and 

 SEXTANT, containing, a most easy, expeditious and accurate Method of adjusting and rectifying 

 those Instruments for Use both at Sea and Land, also the best Disposition of the Glasses ; with 

 Directions for making the Fore and Back Observations ; and the several Steps in the Process of 

 Finding the LONGITUDE at SEA, 8vo. (pp. 40), sewn (plates wanting], 3s n. d. 



'The Public are indebted solely to my Son. J. L. Martin, for the Invention of this New Construction and Improvement 

 of the Sea-Octant.' Preface. 



11478 LOGARITHMOLOGIA : or the whole Doctrine of Logarithms, Common and Logistical, in 



Theory and Practice: the Theory and Praxis of Logarithms, and Three-fold CANON of 

 LOGARITHMS : Natural Numbers, Sines and Tangents, and Logistical Logarithms, with large 

 folding plate, 8vo. old calf, 8s J. Hodges, at the Looking-Glass on LONDON-BRIDGE, 1740 



11479 ANOTHER COPY, old calf (plate wanting), Qs 



Including the author's own logarithmic bcale, ' the like of which, for largeness, was never before published.' 



11480 The MARINER'S MIRROR, Part 1JI. being a New and Compendious SYSTEM of LOG- 

 ARITHMS, in all the different Kinds, viz. I. Nautical Logarithms invented by Mr. Wright. II. 

 Natural Logarithms by Lord Neper. III. Common Logarithms by Mr. Briggs, with their Applic- 

 ation, and the Construction and Delineation of all the Logarithmic Lines and Scales, with folding 

 plate, 8vo. (pp. 62), sewn (rare), 6s Qd 1772 



'The invention of Logarithms has been unjustly ascribed to Lord Neper, whereas it is in reality due only to our 

 countryman Mr. Edward Wright, as I have fully demonstrated.' Preface. At tnd is a list of Martin's publications. 

 The above appears to be his Logarithmologia Nova ' with a different title. 



- MISCELLANEOUS CORRESPONDENCE, containing a Variety of Subjects, relative to 

 Natural and Civil History, Geography, MATHEMATICS, Poetry, Memoirs of monthly Occurrences, 

 Catalogues of New Books, etc., with numerous copperplates, woodcuts, and folding maps, 2 vols. 

 8vo. old hf. calf, 8s Qd 1759 



One of the plates illustrates 'a machine for a perpetual electrified garden,' and others a newly discovered 'lyrichord', 

 Mylne's design for Blackfriars Bridge, and the author's own 'constructed philosophically,' etc. etc. etc. 



11482 NEW and COMPENDIOUS SYSTEM of OPTICS, with Practical Description of a great 



Number of the most useful Optical Instruments and Machines, and their Construction shewn from 

 the Theory, and the Manner of ADAPTING MICROMETERS to Microscopes and Telescopes of the 

 reflecting Sort, with 34 folding plates, thick 8vo. old calf (binding damaged), Is Qd 



J. Hodges, at the Looking-Glass on LONDON BRIDGE, 1740 



