HENRY SOTHERAN & CO., 140, STRAND, W.C, AND 43, PICCADILLY, W. 611 



12279 MtJLLER (Philipp ; Prof. Mathematics and Physics, Univ. Leipzig), Hypotyposis Cometh 

 NUPERRIME visi, una cum Iwevi Repetitione DoCTRlNiE Cometic^e, ex Recentiorum Fundaraentis 

 Stabilienda; Veritatis ergo in Disputationem Publicam oblat/i ; with engravings on copper illus- 

 trating the course of the Comet of Nov. 26th-Dec. 14, IblS, 4t/0. setvn (rare), 10s 6d 



[col.:] Lipsice, G. Liger, 1619 

 Interesting as an early work on cometary astronomy. It is not noticed by Brunet, Graesse, or Ebert, but mentioned 



by Poggendorft' as ' Hypothesis Cometse '. 



According to AUgemeine Deutsche Biographie, where there is a very meagre account of the author, he occupied himself 



chiefly with attempting to explain the nature of comets. 



12280 MiRACULA Chymica et Mysteria Medica, Libris V enucleata, ex Recensione 



Gerardi Blasii ; icith engraved title and woodcuts of chemical apparatus^ 18mo. sound copy in 

 contemporary white vellum (rare), 10s 6d Amstelodami, 1659 



According to H. Kopp the author was the first to mention in the above work dry acetate of potassium (before him 

 only known in solution) under the name of ««rra/oZia<a. 



12281 MUNBY (Alan Edward, F.c.s.) Introduction to the Chemistry and Physics of Building 

 Materials, with woodcuts, large cr. 8vo. cl., 4s (p. Qs nett) 1909 



1-2282 MtJNCHHAUSEN (C. W. E. v.) Schediasma Philologico-Mathematicum, quo 

 Tetractys Pythagor^orum et Quadratura Circuli explicantur et resolvuntur ; with 

 plate, 4to. (pp. 20), sevm {rare), 8s 6d JErfordue, 1739 



The author was really related to the famous ' Baron Mi'mchhausen '. 



12283 MTJRCHISON (Sir Roderick Impey, f.r.s., p.g.s.) On the Coalfield of Brora in 

 Sutherlandshire, and some other Stratified Deposits in the North of Scotl&nd, with 2 plates 

 {I folding and coloured), 4to. (pp. 34), sewn, unth inscr. to Thomas Allan, F.R.S., As 1827 



12284 Outline of the Geology of the Neighbourhood of Cheltenham, with coloured 



front., and woodcuts, 8vo. (pp. 40), scum, As Cheltenham, 1834 



12286 The Silurian System, founded on Geological Researches in the Counties of Salop, 



Hereford, Radnor, Montgomery, Caermarthen, Brecon, Pembroke, Monmouth, Gloucester, 

 AVorcester, and Stafford, with Descriptions of the i oal-Fields and Overlying Formations, 

 with 54 plates (11 folding and coloured), including 31 fine lithographs of fossils, 1X2 woodcuts, 

 a very large coloured folding map in 3 sections, and 3 smaller ones, 2 vols. roy. 4to. new 

 hf black morocco gilt (very SCARCE complete) ; with auto, of L. W. Dillwyn [naturalist, 

 1778-1855], £4. 14s 6c? , 1839 



12286 Another Copy, with the large folding map linen-mounted on one sheet, 2 vols. roy. 



4to. in 1, hf. russia gilt {joints cracked), vnth the map in hf. russia portfolio, £4. 4« 



' The publication of this splendid monograph fonns a notable epoch in the history of modern geology, and well entitles 

 its author to be enrolled among the founders of the science. For the first time, the succession of fossiliferous 

 formations below the Old Red Sandstone was shown in detail. Their fossils were enumerated, described, and figured. 

 It was now possible to carry the vision across a vast series of ages, of which hitherto no definite knowledge existed, to 

 mark the succession of their organisms, and thus to trace backward, far further than had ever before been possible, the 

 history of organized existence on this globe.'— Sir A. Geiku. 



Both the above copies contain the large folding map, ' The Silurian Region and adjacent Counties of England and 

 Wales geologically illustrated ', which is often missing. 



12287 , James BUCKMAN, and Hugh Edwin STBICKLAND, f.r.s. : List of Fossil 



Kemains found near Cheltenham, 8vo. (pp. 44), sewn, with J. Buckman's inscr., 3s 



s. I. [c. 18401 



Forming the appendix to the ' Geology of Cheltenham', supra. 



SiLURiA : a History of the Oldest Rocks in the British Isles, and other Countries, 



with the Origin and Distribution of Native Gold, the General Succession of Geolo^cal Formations, 

 and Changes of the Earth's Surface; 4th [FINAL] Edition, including the Silurian System, with 

 .' coloured front., 41 lithographs of Silurian Fossils, numerous woodcuts, and large coloured map in 

 pocket, thick 8vo. cl. {o.p.), 12s 6d 1867 



The Murchison Prize Book, 1868, with long autograph iNscRiP'riON by the author. 



12289 Fifth [latest] Edition [unaltered], ivith coloured front., 41 lithographs, numerous 



woodcuts, and large coloured map, 2 vols. 8vo. cl. {o.p.), 12s 1872 



• Eminently useful as a compendium and indispensable vade viecum for students of the older rocks all over the world.* 

 — Sir A. Geikie. 



12290 , Life of, baaed on his Journals and Letters, with Notices of his Scientific Contemporaries, 



and Sketch of the Rise and Growth of PALiEozoic Geology in Britain by Sir Archibald 

 Geikie, f.r.s., with 20 portraits and 2 plates, 2 vols. 8vo. cl. {o.p.), 12s 6d (p. £1. 10«) 1875 



Containing a full account of the Murchison-Sedgwick controversy on the respective claims of the Silurian and Cambrian 



systoiiis. 



12291 [MURDOCH (Patrick, Eector of Stradishall ; f.r.s.)] Canons, for Comparing the 

 Parallaxes of the Sun and Moon; their Densities; and their Disturbing Forces on tha 

 Earth and Ocean, with diagram, 8vo. (pp. 16), sewn {rare), 5s [c. 1750] 



' To The Hon. Edward Montagu Esq., 



Hill Street, Berkeley Square '.—Inscr. on title. 

 The above pamphlet was unknown to the author's biographer in D. N. B. 



12292 Mercator's Sailing, applied to the True Figure of the Earth, with Introduction, con- 

 cerning its Discovery and Determination, plates, 4to. sewn, 8* Qd 1741 



'To [Sir] Andrew Mitchel [British Envoy to Frederick the Great] from the Author.' — Inscr. onjlyleaf. 

 ' The most distinctive part of the work is the treatment of the hypothesis that the earth is not homogeneous, but has 

 a central nucleus denser than the surrounding fluid. 'r-Pro/. Todhuvter. 



v. Maclaurin, Nos. 11220-2, ante. 



12293 MURMANN (A.), und L. ROTTER : Untersuchungen Uber die physikalischen Ver- 

 haltnisse krystallisirter Korper. III. Orientirung der Schwingungsaxen des Lichtes in 

 Krystallen des monoklinoedrischen Systemes ; with 'S folding plates and 21 woodcuts, 8vo. (pp. 63), 

 sewn, 2s Qd Wien, 1859> 



