November 3, 1893.] 



SCIENCE. 



251 



A point well developed in these essays is the evil of 

 concentration of population, and, together with this, the 

 ever-growing problem of proper water sujDply and of sew- 

 age disj)osal. The question of pure air is discussed, and 

 also the purifying power of "the living earth." Cities now 

 committed to the evils of expensive and wasteful water 

 supply, with all the accomjDanying difficulties and snares 

 of sewage and sewage disposal. Dr. Poore very properly 

 leaves without his discussion; they have gone so far as to 

 make a turning back well nigh impossible. "Where the 

 end will be he does not even conjecture. It is to the rural 

 and suburban po^Dulation that he ajjpeals, and most ably, 

 for a consideration of certain means by which, upon a 

 thorough scientific basis, they can secure an efficient sani- 

 tation for their homes, a pure water sujaply and an increased 

 land value, all at a minimum of cost. Nor is this rested 

 upon theory alone ; the practical working in all details has 

 been develoj^ed in the author's suburban home, and the 

 same means there used by him are open to all of us who 

 have that blessing of a small piece of ground, and who are 

 not condemned to live in a "flat." C. P. 



A Laboratory Manual^ Conlaininq Directions for a Course of 

 Experiments in Organic Chemistry. By W. E. Okndokff, 

 A. B.,Ph.D., Assistant Professor of Chemistry in Cornell 

 University. Boston, D. C. Heath & Co. "l893. Inter- 



The above manual is designed to accompany Eemsen's 

 "Organic Chemistry," and is systematically arranged as a 

 laboratory companion to that book. It contains a course 

 of experiments, eighty-two in all, graded in careful man- 

 ner, leading on from the elementary principles of organic 

 analysis, fractional distillation, the determination of melt- 

 ing points, etc., to the more advanced synthetical prepara- 

 tions. The procedure of the various operations is 

 admirably given in few but comprehensive directions, and 

 the experiments as described would present no difficulties 

 to a beginner in the study. While parallel to Eemsen's 



book, it is more explicit, and gives greater detail of 

 manipulation. The author's experience as a teacher haa 

 enabled him to select carefully the best conditions of 

 ex23eriment and to present them clearly to the student. 



C. P. 



— D. Appleton and Company have published a large 

 octavo volume containing "Speeches and Addresses of 

 William McKinley." They are mostly of a political char- 

 acter, and, as will be surmised, a large number of them 

 are in advocacy of the protective tariff. Mr. McKinley is 

 well known, not only as one of the leading advocates of 

 the protective system, but also as the author of the exist- 

 ing tariff, and his prominence in the matter will make this 

 book useful even to his political opponents. His views 

 are so generally known, however, that we need not ex- 

 pound them here, and any discussion of them or of the 

 protective system in these columns would be out of place. 

 He expresses himself clearly and forcibly, and whoever 

 wishes to become familiar with the protectionist theory in 

 its extreme form will find it set forth in these pages. 

 Many of the speeches in this volume, however, are on sub- 

 jects of an unpartisan character, such as those commem- 

 orating the life and work of Grant, Garfield and other 

 prominent men, together with several delivered on anni- 

 versary occasions. The author's enthusiastic patriotism 



sometimes too enthusiastic, as it seems to us — appears in 

 almost all of them, as well as his straightforwardness and 

 earnestness. The general reader will be particularly 

 pleased with his remarks on the public school system and 

 his eulogy of the early New Engl»nders, and with his 

 hearty appreciation of the eminent men whom he has 

 known in public life. His strong partisanship, which 

 shows itself so often, is not always pleasing to men of 

 more moderate views; but in a country that is governed 

 by parties it is necessary to know what the party leaders 

 are thinking, and in this respect this volume will b« use- 

 ful to all students of American politics. 



Indigesfm 



Horsford's Acid Phosphate 



Is the most effective and agreeable 

 remedy in existence for preventing 

 indigestion, and relieving those dis- 

 eases arising from a disordered 

 stomach. 



Dr. ^^. "W^ Gardner, Spring- 

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 pleasant acidulated drink when proper- 

 ly diluted with water, and sweetened." 



Descriptive pamphlet free on application to 



RuMFORD Chemical Works, Providence, R. I. 



Beware of Substitutes and Imitations. 



For sale by all Druggists. 



[Free of charge to all, if of satisfactory character. 

 Address N. D. C. Hodges, 874 Broadway, New 

 York] 



For exchange.— Skins of Aegialites nivosa, Ereu- 

 neter occidentalis, Aunnodramus Arldingi. A. 

 rostratus, Chamara tasciata henshawi, etc., for 

 native or foreign skins with full data. Send lists. 

 A. W. Anthony, 2042 Albatross St., San. Diago, Cali- 



I have a Beck New National monocular microscope, 

 accessories, microtome, mounting material ancf a 

 large number of fine slides. Will exchange the 

 whole or in part for a first class type-writer or 

 photograph outfit. A. C. Gruhlke, Waterloo, Ind. 



Offered sidebloom eggs of Bulimus oblongus and 

 exotic land and freshwater shells in exchange for 

 Helices not in collection. Send lists to G. K. Gude, 

 5 Gresbach Road, upper Holloway, London, Eng- 



land. 



Would like to exchange 100 specimens of Canadian 

 Indian Relics for a photo outfit. B. J. Waters, 33 



Hoffman St., Auburn, N. Y. 



For Sale.— A collection of fossil Rhinoceros bones 

 (Aphelops fossiger Cope.) from the Loup Fork Ter- 

 tiary, including all the bones of one fore and one 

 hind leg, the pelvis, representative vertebrae and 

 ribs, and a nearly complete skull, with complete 

 lower jaws. All the bones of the limbs are perfect. 

 Price $250. Address Dept. of Paleontology, Uni- 

 versity of Kansas, Lawrence. 



VX/ANTED.— Tuckerman's Geneva Lichenum and 

 Carpenter on the Microscope. State price 

 Richard Lees, Brampton, 



W^ 



ANTED,— Icones Muscorum by W. D. Sulli- 

 vant, with or without Supplement, but both 

 preferred. Address, stating price and condition 

 of books, Dr. G. N, Best, Rosemont, N, J 



VX/ANTED,— A copy of Mascart & Joubert's Les- 

 ' ' sons in Electricity and Magnetism, Vol. I. Ad- 

 dress R. W. Clawson, Vanderbilt University Nash- 

 ville, Tennessee. 



PHEMIST — Graduate of a polytechnical school, 

 ^-^ and studied photographic chemistry in Ger-- 

 many and Austria. Situation teaching or in ana- 

 lytical or experimental laboratory, M, B Pimnett 

 Rochester, N. Y. ' 



\X/ANTEp.— A recent college graduate to assist in 

 »» editorial work on Science. Those seeking 

 large emoluments need not apply. N D C! 

 Hodges, 874 Broadway, New York. 



A GRADUATE in medicine, experienced, will 

 ^ prepare or revise scientific and medical manu- 

 script for publication, read proof, compile bibliog- 

 raphies, &c. Will also consult New York libraries 

 for persons out of town wishing references to rare 

 works. Address M. D,, 104 Cambridge Place 

 Brooklyn, N, Y, 



