:ii:i?«> 



TWENTY-FOUR PAGES 



Sevknth Year. 

 Vol. XIII. No. 314. 



NEW YORK, February 8, il 



Single Copies, Ten Cents. 

 ^3.50 Per Year, in Advance. 



D. APPLETON & CO. 



I/A VE JUST PUBLISHED 

 I. 



The Development of the Intellect. 



OBSERVATIONS CONCERNING THE 

 MENTAL DEVELOPMENT OF THE 

 HUMAN BEING IN THE FIRST 

 YEARS OF LIFE. By W. Preyer, Pro- 

 fessor of Physiology in Jena. Being Part II 

 of " The Mind of the Child." Volume IX of 

 "The International Educational Series," 

 edited by W. T. Harris, LL.D. i2mo, 

 cloth. Price, #1.50. 



"The Senses and the Will," Volume VII of 

 " The International Education Series," consti- 

 tutes Part I of " The Mind of the Child." Uni- 

 form with above and at same price. 



II. 



Nature and Man. 



ESSAYS, SCIENTIFIC AND . PHILO- 

 SOPHICAL. By the late William Benja- 

 min Carpenter, M.D., F.R.S. With an 

 Introductory Memoir by J. Estlin Carpen- 

 ter, M.A., and a Portrait. Large i2mo, 

 cloth. Price, $2.25. 



In this volume a number of Dr. Carpenter's 

 later essays have been collected, bearing on 

 man's interpretation of Nature, and of his own 

 consciousness. A few passages from earlier 

 writings have been prefixed to illustrate some 

 of the prior stages of his labors on physiological 

 psychology. 



I, 3, & 5 Bond Street, New York. 



THE 



Teleii 



COMPANY. 

 95 MILK ST,, BOSTON, MASS, 



This Company owns tbe Letters 

 Patent granted to Alexander Gra- 

 ham Bell, March 7th, 1876, No. 

 174,465, and January 30, 1877, 

 Nq. 186,787. 



The Transmission of Speech by 

 all known forms of ELECTKIC 

 SPEAKING TELEPHONES in- 

 fringes the right secured to this 

 Company by the above patents, and 

 renders each individual user of tel- 

 ephones, not furnished by it or its 

 licensees, responsible for s>uch un- 

 lawful use, and all the conse- 

 quences thereof and liable to suit 

 therefor. 



Wants. 



•\1trANTED.— A teacher for the Natural Sciences a 

 •• History, who is also comiietent for the position 

 e Principal, in a flourishing private schoool. / 

 O. Box 385. Plainfield, N.J. 



39TH Annual Statement 



OF THE 



^TNA 



Life Insurance Co., 



OF HARTFORD, CONN.. 



JANUARY I, 1889. 



.. . $3,404,964 16 



135.085 



Premium Receipts in 1888 



Interest Receipts in 1888 . 



Total Receipts during the year. 



Disbursements to Policy holders, and for 



expenses, taxes, &c 4,045,408 26 



Assets January i, 1889. 33.^191034 97 



Total Liabilities 28,252,979 73 



Surplus by Ct., Mass., and N. Y. stand- 

 ard 5,566,055 24 



Surplus by many States 7i3Z5iOOo 00 



Policies in force January i, 1889, 67,749, 



insuring 102.904,30344 



Policies issued in 1888, 8,083, insuring... 16,094,587 00 



MORGAN G. EULKELEY, President. 

 J. C. WEBSTER, Vice-President. 



J. L. ENGLISH, Secretary. 



H. W. St. JOHN, Actuary, 

 GURDONW. RUSSELL, M.D., Consulting Physician. 



^Juinford & Bushnell Managers, 



li 



165 BROADWAY, 



NEW YORK. 



%S^. 



JUST PUBLISHED: 



Ar 



498 Pages, i2mo, Cloth. Illustrations and Plates. Price $4.00. 



THE TELEPHONE. 



BY WM. HENRY PREECE, F.R.S., AND JULIUS MAIER, PH.D. 



COnSTTIEIsrTS. 



INTRODUCTION-CHAPTER I, Soun 

 CHAPTER II. Induction. 

 CHAPTER III, The Bell Telkphone. 

 CHAPTER IV. Caijbon Transmitters. 

 CHAPTER V. Theory, 

 chapter VI. Telephone Receivers, 

 chapter VII. Carbon Transmitt-rs. 

 chapter VIII. Special Telephones, 

 chapter IX. On THE Comparative Ef 



chapter X. 



CHAPTER XI. Auxii 



dSta 



f Some Transmit! 

 R Installation 



' Terminal Stai i 



CHAPTER XII. 0RDINAR^ 



CHAPTER XIH. Interme 



CHAPTER XIV. Telephone Exchanges. The British Post-Office System. 



CHAPTER XV Telephone Exchanges. The German System. 



CHAPTER XVI. Telephone Exchanges. The French System. 



CHAPTER XVII. Telephone Exchanges. The Swiss System. 



CHAPTER XVIII. Telephone Exchanges. Miscellaneous. 



CHAPTER XIX. Telephone Exchange Mul 

 Electric Multiple Switchboard. 



CHAPTER XX. Telephone Exchange Multi 

 change System. 



CHAPTER XXI. Int 



Switches. The Western 

 WITCHES. Manchester £x- 



munication Between two I 

 Translation. 

 CHAPTER XXII. Public Telephone Stations. 

 CHAPTER XXIII. Automatic Connection Register 



CHAPTF.R XXIV. 1 

 CHAPTER XXV. S 

 CHAPTER XXVI. < 

 CHAP lER XXVII. 

 CHAPTER XXVIII. 



Telf 



luLTipi-EX a.nd Long-Distance Telephony, 

 vrral Subscribers Placed on One Circuit(0. 



rVERAL SUBSCKIBP-RS PlACED ON One CiRCUIT (iI ). 



Skvbral Subscribers Placed on One Circuit (hi). 

 Application of the Telephone to the Telegrap 



CHAPTER XXIX. The ' 

 CHAPTER XXX. Misce 

 Appendix th 



' Instrument. 

 ANEOUs Applications. 

 London. Cables. British Wire Guagb. Index. 



Copies sent postpaid on receipt of price. 



D. Van Nostrand Compan}^ 23 Murray & 27 Warren Sts., N.Y. 



