HENRY SOTHERAN & CO., 140, STttANl), W.C., AND 3?, PIOCAD1LLV, \V. 355 



6935 CLAVERING (Robert, builder] ESSAY on the CONSTRUCTION and BUILDING of CHIMNEYS, 

 the common Causes of their SMOAKING, and the most effectual Remedies for removing so intoler- 

 able a Nuisance ; with Table to proportion Chimneys to the size of the Room, with folding copper- 

 plate, 8vo. calf (back of binding damaged], "is 6d 1779 



6936 CLAVIUS [Germanice SCHLUSSEL] (Christoph, s.j., Bambcrg] ARITMETICA PRATTICA, 

 tradotta da LORENZO CASTELLANO, Patritio Romano, prima edizione italiana, 12mo. con- 

 temporary vellum (back of binding damaged) ; rare, 15* Roma, 1586 



6937 - NUOVA EDIZIONE, revista dal medemo Padre Clavio, con alcune Aggiunte, 12nio. old 



vellum (binding defective], 10s Qd ibidem, 1602 



6938 - ALTRA EDIZIONE, 12mo. old limp vellum, 8s Gd ib., 1613 



A translation of the ' Epitome.' 



' Perhaps there are more extensive examples of the square root worked by the old method in this treatise than would 

 easily be found elsewhere.' Prof, de Morgan. 



6939 - EPITOME ARITHMETICS PRACTICE, mine denuo ab ipso Auctore recognita, 12mo. original 

 limp vellum (FINE COPY) ; rare, 12* Gd ib., Dominicus Basa, 1585 



6940 - GEOMETRIA PRACTICA, editip princeps ; with numerous diagrams, sm. 4to. contemporary 

 limp vellum (some II. browned, otherwise a FINE COPY) ; RARE, 18s ib., A. Zannettus, 1604 



Containing the author's invention of a new transversal measure. ' Sciu Werk ist Muster eines Lchrbegrifl's der prak- 

 tischen Geometrie, vollkommen fur seine Zeit.' Kaestner. 



6941 - GNOMICES Libri yill, in quibus non solum HOROLOGIORUM SOLARIU, sed aliarum quoque 

 Rerum, quoe ex Gnomonis Umbra cognosci possunt, Descriptiones geometrice demonstrantur, 

 editio princeps; with finely engraved title, woodcuts, and numerous diagrams, folio, VERY FINE 

 AND TALL COPY in old English calf, with auto. ' Ld ARUNDELL ' [THOMAS HOWARD, 2ND EARL 

 OF ARUNDEL AND SURREY, 1586-1646], 2. 2s ibidem, apud eundem, 1581 



'C'est le plus grand ouvrage existant sur la gnomonique.' Houzeau et Lancaster. It was reprinted in 1537, 1602, 

 and 1611. 



6942 HOROLOGIORUM NOVA DESCRIPTIO ; with woodcuts and numerous diagrams, sm. 4to. old 



Italian white vellum (FINE COPY) ; RARE, 1. 10s ib., a. e, 1599 



' Rare '.Houzeau et Lancaster, who mention the work under No. 11,306. It has only been once reprinted, viz. in the 

 edition of the author's complete works. 



6943 ROMANI CALENDARII a GREGORIO XIII. P.M. restituti EXPLICATIO, dementia VIII. 



P.M. Jussu edita: Novi CALENDARII ROMANI APOLOGIA adversus MICHAELEM M.ESTLINUM 

 Gaeppingensem . . . explicate. APPENDIX ad Novi Calendarii Romani Apologiam, in quo 

 JOSEPHUS SCALIGER, GEORGius GERMANNUS, et FRANCISCUS ViETA, qui Calendarium aliter 

 instaurandum esse contenderunt, seorsim singuli confutantur ; accessit REFUTATIO CYCLOMETRLE 

 ejusdem SCALIGERI ; with diagrams, folio, old vellum (browned as usual), 1. 5s Mogunticc, 1612 



The above copy belonged to BROOK TAYLOR, F.R.S. (1685-1731), the inventor of the calculus of finite differences, and has 

 his auto, pasted on title, and several MS. corrections. There is also added, in a very Leat old hand, a ' Stellarura 

 Australian! catalogus ad Annum, K'.<V2.' 



The above forms the iifth vol. of the author's complete works, and is the OFFICIAL EXPOSITION of the GREGORIAN CALENDAR, 

 which was largely the author's work, with replies to the attacks by the more prominent dissenting mathematicians. 



6944 - In SPJLERAM JOANNIS de SACRO Bosco COMMENTARIUS, editio princeps ; with numerous 

 woodcuts and diagrams, sm. 4to. old limp vellum, with old auto. ' exlibrisPhilippi De Cherubinis' 

 on title, 16s Gd Eomte, Viet. Helianus, 1570 



6945 EDITIO TERTIA, ab ipso Auctore recognita, et plerisque in Locis locupletata. Major! 

 item Cura correcta ; with numerous woodcuts and diagrams, sm. 4to. old vellum (fine and large 

 copy), 15s Venetiis, Bern. Basa, 1596 



6946 CLAXTON (Captain, R.N. , Managing Director] DESCRIPTION of the GREAT BRITAIN STEAM 

 8H1P, built at Bristol, for the Proprietors of the Great Western Steam Ship Company; with 

 the Comparative Merits of Iron and Wood as Materials for Ship Building, with 5 plates, 8vo. 

 (pp. 16), sewn, 3s Gd Bristol, 1845 



6947 CLEBSCH (Rudolf Friedrich Alfred) LECONS sur la GKOMETRIE, recueillies et completees 

 par FERDINAND LINDEMANN ; traduites par 'ADOLPHE BENOIST ; Tomes I et II : Traite des 

 Sections coniques et Introduction a la Theorie des Formes algebriques ; Courbes algebriques en 

 general et Courbes du 3 C Ordre ; with numerous diagrams, 2 vols. roy. 8vo. in 1, buckram, uncut, 

 with bookplate of Prof . H. W. LI. Tanner, F.R.S., Us (p. F. 26nett unbound) 1879-80 



6948 THEORIE der ELASTICITAT FESTER KORPER, 8vo. hf. red calf gilt (SCARCE), 15s Leipzig, 1862 



6949 CLEGG (Samuel) PRACTICAL TREATISE on the MANUFACTURE and DISTRIBUTION of COAL- 

 GAS, its Introduction and Progressive Improvement; with General Estimates, 5th [LAST] EDITION, 

 greatly enlarged, with 33 plates (many folding], and 174 woodcuts, 4to. cl., GsGd (p. 1. Is) 1868 



6950 CLERKE (Agnes Mary) POPULAR HISTORY of ASTRONOMY during the NINETEENTH 

 CENTURY, third Edition [greatly enlarged!, with vhoto- front., vignette, and, 5 plates, thick 8vo. 

 cl., 6s Gd (p. 15*) 1893 



The best History of Modern Astronomy, by one of the ablest modern women astronomers, whose death leaves Lady 

 Huggins the doyenne of the illustrious succession of Caroline Herschel. 



6951 The SYSTEM of the STARS, 2nd [latest] Edition, with 20 plates and 37 woodcuts, thick 



8vo. cl., Us (p. 1. nett) 1905 



An excellent treatise on Sidereal Astronomy. 



6952 CLEBKE (Gilbert ; pr., mathematician] The SPOT-DIAL, very useful to shew the HOUR within 

 the HOUSE ; -\yith Directions how to find a true Meridian, the Azymuth and Declination ; and how 

 to draw a Dial upon a Staff, Ceiling, or any Pillar or Globe, with 2 woodcuts, sm. 4to. extra 

 boards (corner of title mended, and a few II. slightly stained] ; VERY RARE, 1 . 155 W. Kettilby, 1 687 



The 'spot dial' was the author's own invention. ''The' use of it is to see the hour by the rays of the sun passing 

 through a hole, and terminated in a glass set in a frame within the house against the window ; the ground of it is the 

 same with that of the sun's light passing through .1 hole in the window, and "intercepted by a string, and of the Cieling- 

 Dial, where the reflect! ng-glass is supposed to be 'a point in the style.' 1'reface. 



