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



3996 RICHARDSON (John) Philosophical Principles of the Science of Brewing, containing 

 Theoretic Hints on an Improved Practice of Brewing Malt-Liquors, and Statical Estimates of the 

 Materials for Brewing, or a Treatise on the Application and Use of the Sacchaeometer, 

 including Tables and Directions for using it, 3rd [last] Edition, front. ^ 8vo. boards, uncut {rare), 

 155 York, 1805 



* In this work he dwells on the utility of the thermometer and saccharometer in brewing, instead of determining 

 quantities by rule of thumb. He was the first to bring to the knowledge of brewers the use and value of the saccharo- 

 meter, as Coinbrune in 1762 had first recommended the thermometer.'— D. N. B. 



RICHER (Jean) Observations Astronomiques et Physiques— v. Picard (J.), ante. 



3997 RICHTER (M. M.) Lexikon der Koiilenstoff-Verbindungen, mit Supplement I, um- 

 fassend die Litteraturzeit v. 1. Apr., 1899 bis 31. Dec, 1900, 2 vols. sq. impl. 8vo. (pp. 2482), hf. 

 red morocco gilt, and 1 part, sewn (fine copy), £3. 35 Hamburg, 1900-1 



This important work, unique of its kind, is arranged according to the atomicity of carbon, from Ci to Cgg?, with a Table 

 of Percentages, and an alphabetical Index. The text is in four languages— German, English, French, and Italian. 



' Ein General-Register liir das Gesauitgebiet der organischen Chemie. . . Das vollkommenste Werk, welches auf dera 

 Gebiete des Litteraturnachweises geschallen ist.'—Ber. d. deiitsch. Pharm. Ges. 



3998 RICHTER (Victor v.) Chemie der Kohlenstoffverbindungen oder Organische Chemie, 

 7. Auflage, neu bearbeitet v. R. Anschutz ; with woodcuts, 2 vols, large post 8vo. hf, morocco 

 gilt, Is Qd Bonn, 1894-6 



3999 Neunte [stark vermehrte] Auflage, bearbeitet v. R. Anschutz ; with woodcuts, 



2 vols, large sq. post 8vo. (pp. 1550), hf. German morocco [nice copy), 14^ (p. M. 31.) ib., 1900-1 



4000 Lehrbuch der anorganischen Chemie, 8. Auflage, neu bearbeitet v. H. Klinger ; 



with coloured spectrum plate, and 90 woodcuts, sq. large post Svo. hf German morocco, 3* Qd 

 (p. M. 10.) ib., 1895 



4001 RIDEAL (Samuel, f.c.s.) Sewage, and its Bacterial Purification ; 2nd Ed., with 49 

 illustrations, roy. Svo. cl.. Is (p. 145 nett) 1901 



4002 Third' [last] Edition, enlarged, with 58 illustrations, roy. Svo. cl., \2s (p. 16s nett) 1906 



One of the best works on the subject. The above edition contains 2 new chapters : Sewage Outfalls and Discharge, and 



the Agricultural Value of Bacterial Effluents. 



4003 Water and its Purification, 6G woodcuts, post Svo. cl., as M (p. 7* 6c?) 1897 



4003*RIDER (William) The Principles of Perspective, and their Application to Drawing from 

 Nature, with 12 plates, Svo. boards, 3s 6oJ 1836 



4004 RIEOKE (Friedrich Joseph Pythagoras) Mathematische Unterhaltungen ; with 

 diagrams, 3 vols. or. Svo. in 1, boards, 3s Stuttgart, 1867-73 



4005 RIEMANN (Georg Friedrich Bernhard, Gottingen) Die partiellen Differential- 

 Gleichungen der mathematiscuen Physik, in 4. [neuester] Auflage neu bearbeitet von 

 Heinrich Weber ; with diagrams, 2 vols. Svo. hf. German calf [as new), 155 Qd (p. M. 23.20) 



Braunschweig, 1900-1 



4006 Another Copy, hf. calf {nice copy), 16s 6d 



4007 RIESS (Peter Theophil) Abhandlungen zu der Lehre von der Keibungselektricitat ; 

 with 2 plates, 2 vols. Svo. sewn, 6s (p. M. 13.) Berlin, 1867-79 



' Riess investigated several interesting cases of distribution. He found the density at the middle of the edge of a cuba 

 to be nearly 2i times as great as that at the middle of a face ; while the density at the corner of the cube Avas more than 

 four times as great.'— Pro/. Silvanus Thompson. 



4008 Die Lehre von der Keibungselektricitat ; with 12 folding plates in copper, 2 vols. 



Svo. hf. calf, 10s 6d (p. M. 24. sewn) ibidem, 1853 



Embodying the author's important investigations on frictional electricity, in which he used an electric air-thermometer 

 devised by himself, which however differs, according to Prof. Silvanus Thompson, in no way from tliat invented by 

 B. Kinnersley 90 years before. 



4009 RIFFAULT (Jean Rene Denis), Armand Denis VERGNAUD. and G. Alvar TOUS- 

 SAINT : Practical Treatise on the Manufacture of Colors for Painting, revised and 

 edited by Francois Malepeyre, trans, by A. A. Fesquet, with 80 illustrations, thick roy. Svo. 

 hfbroivn morocco neat {title stampedfbut good copy) ; scarce, 15s {p.£{.lls6din el.) Philadelphia, 181 4: 



* By far the most thorough and complete treatise on the subject ever published in English '. — Preface. 



4010 RIGAUD (Stephen Peter, f.r.s. Savilian Prof. Astronomy) Account of some Early Pro- 

 posals for Steam Navigation, Svo. (pp. 14), sewn {scarce), 3s 6d Ashmolean Sac, Oxford, 1838 



' As a mathematical antiquary and bibliographer, Rigaud had no rival previous to De Morgan '.— D. N. B. 



Historical Essay on the First Publication of Sir Isaac Newton's Principia— i;. 



Newtoniana (No. 3299), ante. 



4011 RIGBY (Edward ; physician; Mayor of Norwich) CHEMICAL OBSERVATIONS on Sugar, Svo. 

 (pp. 116), sewn {rare), 15s 1788 



The experiments are still based on the assumption that sugar consists of ' a peculiar acid and phlogiston.' The chapters 

 include : Production and Composition by Natural Processes ; Decomposition by Art, especially by Fermentation ; the Revi- 

 vification of Sugar, etc. 



4012 RIGG (Arthur) Practical Treatise on the Steam Engine, with 96 steel plates, and 200 

 woodcuts and diagrams, 4to. cl., 6s 6d (p. £2. 2^) 1878 



4013 Another Copy, hf morocco, Is 6d 



4014 RIMMEL (Eugene) The BoOK of Perfumes, 6th [last] Ed., with plates (1 coloured), and 

 numerous woodcuts, Svo. cl., g. e. {slightly foxed) ; scarce, 6s 6d 1868 



' A volume of great interest in an historical, antiquarian, scientific, and social point of view.' 



4015 RIOS (Joseph de Mendoza, f.r.s.) Complete Collection of Tables for Navigation and 

 Nautical Astronomy, with Simple Methods for all the Calculations at Sea, particularly for 

 deducing the Longitude from Lunar Distances, and the Latitude from Two Altitudes of the 

 Sun and the Interval of Time between the Observations, 4to. hf. calf antique (2 II. damaged), 

 5s 6d 1805 



4016 Second [last] Edition, improved, 4to. hf russia, 9s 6d 1809 



'By his discoveries lie completely changed the bases of nautical astronomy'.— D, N. B. 



