



IN 



E 



Af^WEEKLY NEWSPAPER OF ALL THE ARTS AND SCIENCES. 



PUBLISHED BY N. D. C. HODGES, 874 BROADWAY, NEW YORK. 



Tenth Year. 

 Vol. XIX. No. 475. 



MARCH 11, 1892. 



Single Copies, Ten Cents. 

 13.50 Per Year, in Advance. 



Contents. 



The Scientific Alliance 141 



Actinism. C. Staniland Wake 142 



The Psychological Laboratory in the 

 University of Toronto. J. Mark 



Baldioin 143 



Notes and News 144 



Current Notes on Anthropology. — I. 



Edited by D. G. Brinton 146 



Motion and Heat. (Continued) . Dan- 

 iel S. Troy 147 



Letters to the Editor. 



Further Notes on the Loup and 



Platte Rivers. J. E. Todct. 148 



Estimates of Distance. J. E. Oliver. 149 

 ■ Work and its Relation to Gaseous 

 Compression and Expansion. H. 



A. Bazen 150 



Pyrite Incrustations of the Creta- 

 ceous Formations of Middlesex 

 County, N. J. D. T. Marshall. . . 151 

 Among the Publishers 151 



Entered at the Post-Offlce of New York, N.Y., as 

 Second-Class Mail Matter. 



iV^Oir READY!! 



AN ENTIRELY NEW ATLAS. 



By J. G. BARTHOLOMEW, F.R.G.S,, F.R.S.E. 



THE GRAPHIC ATLAS 



And Gazetteer of the World. 

 With over 220 Maps, Charts, Plans of Cities, etc., 



ALL REVISED TO THE PRESENT DATE. 



Also Gazetteer with nearly 55,000 places and results of Neiv Census. Quarto (size, lOf x 



8|- inches), half morocco, gilt top, $7.50. 



Throughout the Atlas the countries of the world have been treated with fulness in proportion to their 

 commercial importance and interest. 



In tlie United States section a Separate 31ap is given of eacb of the States and 

 Territories. 



The Canadian Provinces are treated in similar detail. 



These Maps have been specially compiled from the latest and best Government Survey Maps, and 

 have undergone local revision for the verification of New Counties, Townships and Railways. 



Amonf; the special features are Maps of the Hudson and Rhine Rivers, the Yosemite Valley, United 

 States Railways, British Isles Railways, mean Annual Temperature, mean Annual Rainfall; also Maps 

 showing location of the World''s Fair, envirous of New York, Chicago, Philadelphia, Boston, San Francis- 

 co, New Orleans, Montreal, Quebec, Toronto, Ottawa, Rio Janeiro, London, Liverpool, Manchester, Mo- 

 ville, Paris, Vienna, Rome, CoDstantinople, Cape Town, Jerusalem, etc., etc. 



~The Gazetteer of the World is a valuable feature for such a book of reference. It contains entries for 

 about 55,000 places, is compiled from the latest authorities, and is specially complete in American names. 



The results of the new census have been incorporated. 



For compactness and portability this volume is, in proportion to its ample contentSy quite unique 

 among atlases. 



THOMAS NELSON & SONS, 



Fiiblishers and hnporters, 

 33 East 17th Street, llnion Square, ... - IVew York. 



7% IMPROVEMENT BONDS. 



Secured by Real Estate worth Four Times the Amount of the Mortgage. 



The attention of investors having money to invest and wishing a little higher rate of interest than is usually realized from Eastern 

 securities, is invited to some bonds that bear 7 per cent, annual interest, and are so amply secured by real estate as to commend them to 

 the most careful and conservative investor. 



These are Improvement Bonds of the Fort Worth and Arlington Heights Land and Invest= 

 ment Co. which owns the beautiful suburban addition to Fort Worth, Texas, known as Arling= 

 ton Heights. They are issued to the amount of $100,000.00, and are for the purpose of erecting 

 a large and commodious Hotel at the Heights. 



The site selected for the building is on very high ground ; it is the most desirable tract in the addition, and includes a full block. The 

 hotel and site are mortgaged to secure the bonds, and 100 blocks, of forty lots each, are also included in the mortgage. Valuing 

 the blocks at §3,000 each, a security is given of about four dollars' worth of real estate to one dollar's worth of bonds. Surrounding 

 blocks of the same class have been sold for more than §3,000 per block, and the property is constantly increasing in value. 



With its improved and unimproved land. Electric Street Railway, Electric Light Plant, complete Water System, Mortgage Notes, 

 etc., the company possesses assets over liabilities of more than one million of dollars. 



The bonds mature at the rate of $10,000 per year, beginning with January 1st, 1897. The Company has the privilege of calling them 

 all in on and after January 1, 1903. They are issued in denominations of $2.50 and $.500, with the interest payable July 1 and January 1, 

 in coupon form. 



Each $1,000 worth of the bonds is secured by a specified block, which is released as the bond is retired; as the hotel and site remains 

 a mortgage for all of the bonds, the security becomes even stronger as the bonds are paid off. 



The entire mortgaged property is held in trust for the bondholders, by the Franklin Trust Co., of Brooklyn, through whom the interest 

 and principal will be paid. The Trust Company can foreclose in the event of default of interest or principal. 



The bonds bear interest from January 1, 1893. They are sold at par with accrued interest; a large proportion of them have already 

 been sold ; the hotel is already in course of construction. 



A few lots can be purchased in this addition which promise large returns after a few years' holding. 



Further information given by letter or private interview. 



E. W. WATKINS, 156 BROADWAY, NEW YORK. 



