THE YOUNG NATURi^LlST. 



215 



cies and by the legs being stout, whilst in 

 these two genera they are slender. It may 

 be distinguished from the other three genera 

 of the family by the characters given above. 

 The British species number about thirty, 

 and will be described in the next number. 



Stenolophus —The species of this genus 

 may be distinguished by their slender legs, 

 by the intermediate tarsi of the males being 

 dilated, and by the small size of most spe- 

 cies (under 3 lines). 



Bradycellus — This genus resembles some- 

 what the preceding, but the elytra are more 

 rounded at the sides ; the intermediate tarsi 

 of the males are not dilated ; and the largest 

 species measures only a little over 2 lines. 

 The species of the genera Stenolophus and 

 Bradycellus will be described after those of 

 Harpalus. 



REVIEW. 



"SCIENCE." 



This is a weekly publication issued at 

 Cambridge, Massachusets, and is more in 

 the style of " Nature" than any English 

 magazine with which we are acquainted. 

 It appears to be published by a Company, 

 called " The Science Company," with Direc- 

 tors, President, Vice-President, See, &c. 

 Whether this really is what we understand 

 by a company in this country, or merely a 

 few individuals banded together for the 

 promotion of science, through this paper, 

 we do not know ; but if it be a company in 

 the ordinary meaning of the term, it is cer- 

 tainly a bold undertaking, and one that we 

 cannot but wish every success. 



The number for 4th May last was the 

 first we saw, and, judging from its contents, 

 the magazine will be well worth perusal. 

 The first article is on the proposed meeting 

 of the British Association in Canada, and 

 our American cousins appear to be taking 

 time by the forelock, to make the gathering 

 to be held at Montreal, in the autumn of 



next year, a success, independent of the 

 efforts also making in British North America 

 and more especially in Montreal. The 

 American Association is arranged to meet 

 at Minneapolis, a month before the meeting 

 of the British Association this year, and the 

 idea is thrown out that arrangements might 

 might be made to " substantially unite the 

 meetings of the two Associations in 18S4, 

 and so prepare for an international meeting 

 in the future." 



Another article of special interest, from a 

 Darwinian standpoint, is called " Horse- 

 Trotting, from a Mathematical Standpoint." 

 Horse-trotting is almost confined to the 

 United States, or at all events is carried on 

 on there to a much greater extent than in 

 any other part of the world. As much 

 attention is there paid to trotting-horses, as 

 is given in this country to race-horses. 

 They are specially reared for trotting, and 

 everything done that can be done to ensure 

 fast animals. As a result, a race of horses 

 has, we may almost say, been created that 

 excel and continue to excel all previous 

 records of what has been done in this way. 

 In the year 1818, the shortest time in which 

 a mile had been covered by a trotting-horse 

 was three minutes. Year after year this 

 time has been diminished, and to show the 

 rate of reduction we extract the following 

 dates from a table given as the 



"Best record of mile beats up to the 



present time : — 





Date. 



Record. 



1818 



3.00 



1824 



2.40 



1830 



2.32 



1843 



2.28 



1852 



2.26 



1859 



2.i9i 



1866 



2.18 



1871 



. 1 2.17 



1878 



2.13i 



1880 



2.I0I 



1881 



2.10i 



