^^ 



A WEEKLY NEWSPAPER OF ALL THE ARTS AND SCIENCES. 



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



Tenth Year. 

 Vol. XIX. No. 474. 



MAECH 4, 1893. 



Single Copies, Ten Cents. 

 $3.50 Per Year, in Advance. 



Contents. 



The Need op Psychological Training. 



E. W. Scripture 127 



The Vesicles of Savi. S. Garman. .. . 128 



Bacteria in Drinking Water 128 



The Chinook Jargon. Franz Boas. . . . 139 



Notes and News 129 



Motion and Heat. Daniel S. Troy. . . . 132 

 Letters to the Editor. 



A Question in Physics. X 135 



The Balloon Problem. Paradox ... 136 



The Loup Rivers in Nebraska. L. 

 E. Sicks 137 



The Aboriginal North American 

 Tea. Jed. Hotchkiss 137 



Among the Publishers 137 



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

 Second-Class Mail Matter. 



FOR AMATEUR ASTRONOMERS. 



STAR ATLAS. 



Containing Maps of all the Stars from i '^""stlL ' '''' between the North 



Pole and 34° South Declination, and of all Neu^'^^AT <f,B Illusters 



in the same region which are visible in telescopes^ jf 



moderate powers. With Explanatory Text, by 



DR. HERMANN J. KLEIN. 



Translated and adapted for English Readers, by 



EDMUND McCLURE, M.A., M.R.I.A. 



18 Charts and 81 pages of illustrative letter press. Imperial 4to, Cloth, §3.00. 



" This new Star Atlas is a pleasant surprise to us. We did not before know that Heis 

 had any such rival for real merit in existence." — Sidereal Messenger. 



" 1 have been looking for just such an Atlas for more than thirty years." — H. P. 

 Tuttle, M.A., formerly of the Cambridge (Mass.) Observatory. 



" I have carefully examined the Star Atlas . . . and consider it in every respect 

 a first-class work. ... It gives me great pleasure to state that I do not know of any 

 book of its kind that contains so much accurate knowledge in so small a compass." — Edgar 

 Frisby, Professor of Mathematics, U. S. Navy. U. S. Naval Observatory, Washington, D. 0. 



" In order to find the stars by means of their Eight Ascension and Declension star 

 charts are needed. Members who do not already possess such charts, are recommended to 

 procure Klein's Star Atlas." — Garrett P. Stevens, President of the Astronomical De- 

 partment of the Brooklyn Institute. 



May be obtained from any bookseller, or will be sent free by mail on receipt of price, by 



E. & J. B. YOUNG & CO., Cooper Union, New 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. Tho 

 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, 1902. They are issued in denominations of $350 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, 1892. 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, 1 56 Broadway, New York. 



