HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 37, PICCADILLY, W. 87 



1725 HACHETTE (Jean Nicolas Pierre), CORRESPONDANCE sur I'ECOLE IMPERIALS POLYTECII- 

 NIQUE, a 1' Usage des Eleves de cette Ecole; with numerous plates (mostly folding), 3 vols. 8vo. 

 hf. caff (title to v. 1 seemingly missing] ; RARE, 1.5* 1804-16 



This valuable publication contains contributions on a variety of mathematical and physical subjects by Ampere, Biot, 

 Cauchy, Dupin, Gay-Lussac, Laplace, Monge, Poisson, Thcnard, and many other celebrated scientists of the time. 



1726 - TRAITE ELEMENTAIRE des MACHINES, premiere edition; with 28 plates (many folding], 



4to. sewn (title and a few plates soiled], 4s [1809] 



The first systematic treatise of machinery treated as part of physics. Pp. 122-160 contain Fire Engines and Fuel. 



1727 SECONDE EDITION, augmentee ; with 32 plates (many folding], 4to. old hf. russia, 5s 1819 



1728 HADLEY (H. E.) MAGNETISM and ELECTRICITY for STUDENTS, illustrated, cr. 8vo. cl., 3.s 

 (p. 6s) 1905 



1729 HADLEY (John, F.R.S.): The CONSTRUCTION and USE of the SEA QUADRANT, commonly 

 called HADLEY'S QUADRANT, containing Directions to render its Use both easy and certain, par- 

 ticularly with Respect to the BACK OBSERVATION ; with the THEORY of the INSTRUMENT, and 

 correct TABLES of the SUN'S DECLINATION, with plate, 8vo. (pp. 24), sewn (rare), Ws Qd 1757 



' Iu 1730 he made his second great success by the invention of the reflecting quadrant, a simple but invaluable improve- 

 ment of Hooke's instrument. By means of two small mirrors on a portable instrument it was now first possible easily to 

 note the angle subtended by two distant objects independently of small changes of place in the centre of observation.' 

 D. N. B. 



1730 - Uso do QUADRANTE de HADLEY, que contem as Direccoens necessarias para fazar facil e 



certo o Uso deste Nobre Instrumento ; with copperplate of the Quadrant, 8vo. (pp. 28), sewn, 6s Qd 



Londres, 1761 



An interesting testimony to the still important position of the Portuguese as seamen in the Eighteenth Century. 



1731 - -The NATURE and USE of HADLEY'S QUADRANT, with the Theory of that Noble and 

 Useful Instrument, and Description of the NONIUS, with folding copperplate illustrating the 

 instrument and some of its applications, 8vo. (pp. 32), sewn (rare], 12s Qd [c. 1750] 



The only descriptin of the invention of the sextant by Hadley himself was a 10-pp. contribution to the Philosophical 

 Transactions of the Royal Society. The above tracts were written by London opticians, and are now rare. 



1732 HAGELGANSS (Johann Georg) MACHINA MUNDI SPHAERICA cum PLANISPIIAERIO, oder 

 vollstlindige Beschreibung einer in der Architectura Cosmica angegebenen zweyfachen Welt-Kugel, 

 '38 : ARCHITECTURA COSMICA ECLECTICA et ENUCLEATA : das Welt-Gebaude, dessen Anfang, 

 Wahrung und nachst-bevorstehender Untergang-, '36 : ARCHITECTURAE COSMICAE COMPLE- 

 MENTUM, mit einer Cometen-Beschreibung, '44 3 vols. 8vo. in 1, with numerous folding plates on 

 copper ; fine copies in old white vellum (RARE), 1. \s Franckfurt a. M., 1736-44 



This curious work was unknown to Houzeau and Lancaster, Poggendorff, etc. 



1733 HAIGH (James, Silk and Muslin Dyer, Leeds) The DYER'S ASSISTANT in the Art of Dyin- 

 [sic] WOOL and Woolen [sic] Goods, extracted from the Philosophical and Chemical Worlts ot 

 Ferguson, Dufay, Hellot, Geoffery, Colbert, and de Julienne, trans, from the French, with 

 Additions and PRACTICAL EXPERIMENTS, first edition, post 8vo. old hf. calf (broken) ; rare, 

 12* Qd [1778] 



One of the earliest English works on the subject. 



1734 NEW EDITION, post 8vo. old hf. calf, 15s York, 1787 



This edition includes ' A Hint to the Dyers and Cloth-Makers' (with separate titlepage), not included in the foregoing. 



1735 HAIR (T. H.) VIEWS of the COLLIERIES in NORTHUMBERLAND and DURHAM, 42 large and 

 fine etchings (many PROOFS ON INDIA PAPER), with descriptive Sketches and ESSAY on the COAL 

 TRADE by M. Ross, folio, hf. bound (some plates foxed or slightly stained* ; SCARCE, 1. Is 1844 



One of the very rare attempts to show the picturesque side of the heavy trades. The plates are very good etchings, and 

 give most interesting views of the old-fashioned pit-brows, and staithes on the Wear and Tyne, in the good old days of 

 sixty years ago before the Factory Acts, when women and girls crawled half-naked on all fours dragging the trolleys along 

 the underground ways. The book is unknown to Lowndes and Allibone. 



1736 HALDANE (Robert) WORKSHOP RECEIPTS, SECOND SERIES, illustrated, cr. 8vo. (pp. 486), cl., 

 (out of print*, 3s Qd 1890 



1737 [HALE (Thomas)] ACCOUNT of several NEW INVENTIONS and IMPROVEMENTS now necessary 

 for ENGLAND, relating to the BUILDING of our ENGLISH SHIPPING, the Conservancy of our Royal 

 Rivers, etc. etc. ; with the Proceedings relating to the MILL'D-LEAD-SHEATHING, and the 

 Excellency and cheapness of Mill'd-Lead in preference to Cast Sheet-Lead ; also a TREATISE of 

 NAVAL PHILOSOPHY by SIR WILLIAM PETTY, 16mo. contemporary sheep, with armorial bookplate 

 of Viscount Bruce of Ampthill, 1712 (RARE), 1. Is 1691 



With a 4 p. pamphlet 'Mill'd Lead, demonstrated to be a better and more durable Covering for Buildings,' etc., etc.. 

 1695, added. 



1738 HALES (Stephen ; Vicar of Teddington, parish pr. of Peg Woffington ; F.R.S.) CONSIDERATIONS 

 on the CAUSES of EARTHQUAKES, 8vo. (pp. 21), sewn, Is Qd 1750 



The author gives a personal account of earthquakes which happened in London on March 8th, 1750, and assigns their 

 causes to the ignition of ' ascending sulphureous vapours in the earth.' 



1739 - DESCRIPTION of VENTILATORS : whereby Great Quantities of FRESH AIR may with Ease 

 be conveyed into MINES, GOALS [sic], HOSPITALS, WORK-HOUSES and SHIPS . . . and their Great 

 Usefulness in preserving all Sorts of Grain Dry, Sweet, and free from Weevels, etc. etc., also in 

 drying Corn, Malt, Hops, Gun-Powder, etc., 2 folding plates : ACCOUNT of a USEFUL DISCOVERY 

 to DISTILL double the USUAL QUANTITY of SEA WATER, by Blowing Showers of Air through the 

 Distilling Liquor, the great Benefit of Ventilators, and the good Effect of blowing Showers of Air 

 up through Milk, 2nd Ed., with farther considerable Improvements, the good Effect of Ventilators 

 in Ships, etc. etc., plate -2 vols. 8vo. in 1, old calf (RARE), 1. 5s 1743-56 



The author, 'a poor, good, primitive creature,' according to his fribble neighbour Horace Walpole, was one of the fore- 

 most scientists of his time, a zealous parish priest, and a most versatile man. He has the further interest for AMERICANS 

 as having been one of the trustees for the Colony of GEORGIA, and the plant Hcdesia remains as a memento of this connexion, 

 as it was named in his honour by JOHN ELLIS the naturalist, when governor of th colony. 



