THE YOUNG NATURALIST. 



879 



announce that we have arranged with 

 Messrs. John Kempster & Co., 

 St. Bride's Avenue, 



Fleet Street, 



London, E. C. 



who wi' in future Supply the trade : and we 

 trust oui readers will ha- e no further difficu ty 

 in procv .ing copies thro 1 gh a local Booksell ir. 



NOTICES. 

 The 1c oung Naturalist is published \\> 

 time to each subscriber.- by Saturday morning 

 in each -eek. It may be had in the ordini ry 

 way through any Book.^eller, or POS T FR IE 

 as under : — 



Single Copies', l£d. each ; Is. 6d, per 

 quarter ; 6s. per annum. Three Copies to one 

 address 3d. ; 3s. 3d. per quarter; 13s. per 

 annum. Those requiring the back numbers will 

 be charged 5s. 



Monthly Parts in Colored Wrapper, 6d. 

 each. 



Orders or other communications must be sent 

 to John E. Robson, Bellerby Terrace, \\ est 

 Hartlepool ; or to S. L. Mosley, Woodside 

 Road, Beaumont Park, Huddersfield. Orders 

 may also be s^n t to the printers or publishers. 



Secretaries of Societies. Schoolmasters, &c, 

 who will act as Agents will be supplied at 9d. 

 [>er dozen copies. 



Subscribers for one year in advance, will have 

 the Special Plates beautifully colored by hand 



Single subscribers who find it inconvenient 

 to obtain the weekly issue through any Agent 

 or Bookseller, can have them forwarded ev sry 

 four weeks for Is. Id., per Quarter; 4s. 4d., 

 per Annum. 



Communications for insertion should read us 

 one week' hi advance. 



The Young Naturalist may also be had as 

 under : — 



Bp. Auckland — J. P. Soutter, Clyde Terrace. 



Bradford — J. W. Carter, 168, Priestman 

 Street, Carlisle Road, Manningham. 



Birmingham — M. Browne, Broad St. 



Coventry — W. Thompson, 4, Court. 4, 

 House, Gosford Street. 



Dews bury — Carter Lodge, Thornhill. 



Hartlepool — J. J. Dixon, Hart Street 



Huddersfield — Parkin, Cross ('hue]' 

 Street; Ernest Denton, Moldgreen ; Sinn on 

 Rave, Paddock; James Varley, Almondburv 

 Bank. 



Leeds — W. Denison Roebuck, Sunny Bank, 



Liverpool — B. Cook, junr. & Co., 21. 

 Kensliaw Street. 



London — E. G. Meek, 56, Brompton Road ; 

 Costle an 1 Lamb, 133, Salisbury Sq, Fleet it 

 Kewcastle-on-Tyne and Gateshead — Geo. 



T. Miller, 23, Cromwell Terrace, Bensham, 



Gateshead. 



Plymouth — G. C. Bignall, Clarence Place, 

 stonehouse. 



West Hahtleool — C. Hoggett, Church St. 



Travelling Stones. — Many of our read- 

 ers have doubtless heard of the famous 

 i travelling stones of Australia. Similar 

 curiosities have recently been found in Nev- 

 j ada, which are described as almost perfectly 

 round, the majority of tnem as large as a 

 walnut, and of an iron)- nature. When 

 j distributed about upon the floor, table, or 

 j other level surface, within two or three fee. >f 

 each otner, they immediately begin travelling 

 towards a common centre, and there lie 

 ! huddled like a lot of eggs in a nest. A single 

 ; stone, removed to a .distance of three and a 

 half feet, upon being released, at once started 

 off with wonderful and somewhat comical 

 ! celerity to join iis fellows ; taken away four 

 or five feet it remains motionless. They are 

 I found in a region that is comparatively level, 

 i and is nothing but bare rock. Scattered over 

 this barren region are little basins, from a few 

 ! feet to a rod or two in diameter ; and it is in 

 the bottom of these that the rolling stones are 

 found. They are from the size of a pea to 

 five or six inches in diameter. The cause of 

 these stones rolling together is doubtless to 

 [ be found in the material of which they are 

 ! composed, which appears to be lodestono. or 

 magnetic iron ore. 



The Natural Age of Man.- We are 

 j accustomed to consider threescore years and 

 j ten the length of human life, but the late 

 Professor Faraday adopted the theory that 

 | the natural age of man is ioo years. The 

 duration of life he believed to be measured 

 by the time of growth. In the camel the 

 completion takes place at eight, in the horse 

 at five, in the lion at four, in the dog at two, 

 i in the rabbit at one. The natural termina ! on 

 i is five removes from these several points, 

 Man being twenty years in growing, lives i\ . 

 times i ,venty years — that is ioo ; the camel 

 i.s eight years in growing, and lives 1 r y 

 years; a; d so with other animals. The n n 

 who does not die of sickness lives every where 

 from 8o to ioo years. The professor divides 

 life into equal halves — growth and decline — 

 and these into infancy, youth, virility, , and 



