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



7081 CRESY (Edward, C.E., F.S.A.) ENCYCLOPEDIA of CIVIL ENGINEERING : Historical, Theoretical, 

 and Practical, with 3057 woodcuts, 2 vols. 8vo. hf. morocco (shabby), 3s Qd 1847 



7082 NEW IMPRESSION, with SUPPLEMENT (pp. 93), with 3203 woodcuts, 2 thick vols. 8vo. 

 hf. morocco gilt (nice copy], 8s Qd (p. 3. 13s Qd in cl.) 1861 



7083 CRISTOFORO (Giacinto, da Napoli) Delia DOTTRINA de' TRIANGOLI : De CONSTRUCTIONE 

 /EQUATION UM Libellus 2 vols. 4to. in 1, with diagrams ; contemporary vellum (rare], 12s Qd 



Venezia, 1120Neapoli, 1700 



' Rare e pregiate opere'. RiccanH. The second work treats of the geometrical construction of indeterminate equations 

 of the second order, and has the subject ' savamment developpe" (Moiituda). 



7084 CBIVELLI (Giovanni, C.R.S. Veneto ; F.R.S.) ELEMENTI d'ARiTMETiCA NUMERICA e 

 LETTERALE, 8vo. boards, uncut, 7s Qd Venezia, 1728 



Rare, and unknown to Prof, de Morgan. 



7085 CROCKER (Francis Bacon, Columbia Univ.) ELECTRIC LIGHTING : Vol I : GENERATING 

 PLANT ; Vol II : DISTRIBUTING SYSTEM and LAMPS, 3rd Ed., with 543 illustrations, 2 vols. 

 roy. 8vo. cl. (cover etc. of v. II soiled), 8s Qd (p. 1. 5s) New York, 1896-1902 



7086 CROES (C. W. J.) De ZON GEEFT GEENE WARMTE : Beschouwingen op liet Gebied der Natuur, 

 8vo. (pp. 30), sewn, Qs Qd 's Hertogenbosch, 1858 



Probably the only work ever written in support of the queer paradox that no heat is given off by the sun. 



7087 CROLL (James, Geol. Survey Scots.; F.R.S.) CLIMATE and TIME in their GEOLOGICAL RE- 

 LATIONS : a Theory of Secular Changes of the Earth's Climate, with 8 plates and maps, and wood- 

 cuts, thick Svo. cl., uncut, Qs Qd (p. 1. 4s) 1875 



' His most important book . . . Croll maintained that the low temperature occurred when the eccentricity of the earth's 

 orbit had a high value, but was modified by the processional movement of the earth's axis.' Prof. Bonney, pr., F.H.S. 



7088 CRONSTEDT (Axel Fredric) ESSAY towards a SYSTEM of MINERALOGY, trans., with 

 Annotations, and additional Treatise on the BLOW PIPE, by GUSTAV VON ENGESTROM ; 2nd 

 Ed., greatly enlarged by the Addition of MODERN DISCOVERIES ; and by a New Arrangement of 

 the Articles, by JOHN HYACINTH DE MAGELLAN, F.R.S., with 2 folding plates, 2 vols. 8vo. fine 

 copy in contemporary tree-calf gilt (rare), 15s 1788 



The above copy belonged to RICHARD WATSON, F.R.S., absentee Bp. of Llandaff(l737-lS16), and bears his Calgarth Park 

 book-label. 



The author, a Swede, discovered nickel in 1751, and was the first to introduce blow-pipe analysis in mineralogy. 



7089 CROOK (Herbert Evelyn, M.D.) HIGH FREQUENCY CURRENTS : their Production, Physical 

 Properties, Physiological Effects, and Therapeutical Uses, with 44 illustrations, 8vo. cl., 4s Qd 

 (p. 7s Qd nett) 1906 



7090 CROOKES (Sir William, F.R.S.) On ATTRACTION and REPULSION resulting from RADIATION 

 (from Phil. Trans. Roy. Soc.), with plates and woodcuts, COMPLETE in 6 parts in 1 vol. roy. 4to. 

 cl. (SCARCE), with inscr. as below, 1. Is 1873-8 



The first account of the author's invention of the Radiometer, and establishing his theory of radiant matter. 

 ' William Spottiswoode Esqr President of the Royal Society, with the Author's regards.' Inscr. on flyleaf. 



7091 REPRINT OF PART I, with Q plates, post 8vo. sewn, 3s 1875 



7092 On the DISCOVERY of the METAL THALLIUM, 8vo. (pp. 11), sewn, 2s 1863 



7093 ANOTHER COPY, sewn, with inscr. as below, 3s 



' Dr. T. L. Phipson r.c.s. etc. etc. etc. from his friend William Crookes.' Inscr. on title. 



7094 DYEING and TISSUE-PRINTING, cr. 8vo. cl. (scarce), Qs Qd 1882 



7095 - On the EXISTENCE of a NEW ELEMENT, probably of the SULPHUR GROUP (pp. 5) : 

 FURTHER REMARKS on the SUPPOSED NEW METALLOID (leaflet), post 8vo. sewn, with author's 

 inscr. to Dr. Phipson, 2s 1861 



7096 EXPERIMENTAL CONTRIBUTIONS to the THEORY of the RADIOMETER (Preliminary Notice), 



post 8vo. (pp. 16), seivn, 2s 1877 



7097 - On the MEASUREMENT of the LUMINOUS INTENSITY of LIGHT, woodcuts, Svo. (pp. 13), 

 sewn, with author's inscr. to Dr. Phipson, 2s Qd 1868 



7098 The MECHANICAL ACTION of LIGHT, woodcuts, 2 papers 8vo. (pp. 47), sewn, 3.<? Qd 1875-6 



7099 On a NEW ARRANGEMENT of BINOCULAR SPECTRUM-MICROSCOPE, woodcuts, 8vo. 



(pp. 10), sewn, with author's inscr., 2s 1869 



7100 PRELIMINARY RESEARCHES on THALLIUM, Svo. (pp. 8), sewn, with author's inscr., 2s 1862 



7101 - - On RADIANT MATTER, with woodcuts, Svo. (pp. 30), seu-n, with author's inscr. to 

 Dr. Phipson, 2s Qd 1879 



7102 - On RADIANT MATTER SPECTROSCOPY : the Detection and Wide Distribution of Yttrium 

 (Bakerian Lecture), with plate, Svo. (pp. 28), sewn, 2s 1884 



7103 SELECT METHODS in CHEMICAL ANALYSIS (chiefly Inorganic), 2nd Ed., rewritten and 



enlarged, with woodcuts, thick Svo. cl., with bookstamp of Mr. A. P. Sinnett (Esoteric Buddhist), 

 8s Qd (p. 1. 4s) 1886 



7104 , and Ernst ROHRIG: PRACTICAL TREATISE on METALLURGY, adapted from the last 



German Edition of PROF. KERL'S METALLURGY, VOL. I : Lead, Silver, Zinc, Cadmium, Tin, 

 Mercury, Bismuth, Antimony, Nickel, Arsenic, Gold, Platinum, Sulphur, with 207 woodcuts, thick 

 Svo. cl., 10s Qd (p. 1. 11s Qd) 1868 



7105 Vol. II : COPPER and IRON with 273 woodcuts, thick Svo. cl., 12s Qd (p. 1. 16s) 1869 



v. CHEMICAL NEWS, ante. 



7106 CROPPET (Lambertus) THESES ASTRONOMICAE, quibns proponuntur nonnulla de Corporum 

 Mundanorum Simplicium Distinctione et Numero, juxta turn veterum turn recentiorum bene 

 Philosophantium Sententiam, relictis interim Camophilorum nonnullorum Opinionibus ; prretereh, 

 SPECIMEN CONSTRUCTIONS MAGN^E CHORD ARUM TABULAE, qure uti unicum est totius Matheseos 

 Fundamentum, ita et quam maxime desiderata, a nemine tamen ob summas quas continet 

 Difficultates sufftcienter hactenus proposita, folio, old vclhim (rare), 1. Is Wirceburgi, 1598 



