54 
NATURE NOTES 
cases soon contented themselves with nipping and at once relaxing their hold. 
Chapter VIII. is a very readable account of the struggle lor existence, and the 
book is brought to a close by a discussion of Natural Selection, in which the 
light thrown upon the question of evolution by Mendel and De Vries is con- 
sidered, and the probable origin of -species from sudden and comparatively im- 
portant mutations rather than from small and gradually increasing variations 
is dealt with. 
The non-scientific reader will find much to attract him in Mr. Headley’s 
work. If some of the illustrations are a little rough they all nevertheless show 
what is required, and are generally very much to the point («ee figs. 19 and 20). 
The insertion of page numbers in the Contents after the sub-headings of the 
various chapters makes it easy for one to find one’s way about the book. 
Figure 19. — Gannets Gliding, with Wings Outstretched. 
(From “Life and Evolution,” by the courtesy of Messrs. Duckworth & Co.) 
Preservation of Treasure Trove. — A twelve page pamphlet published by the 
South Eastern Union of Scientific Societies. 
This contains first of all a notice to finders of relics, which has been issued 
by the Committee, on means for the preservation of Treasure Trove and other 
relics, appointed by the South Eastern Union of Scientific Societies. It is as 
follows : — 
Notick to Fi.sdf.rs of Keucs. 
(1) Finders of coins, trinkets, crocks, implements of old metalor stone, and other relics of old 
times, are reminded that the value of such relics is often greater than is usually obtained by sale 
to a passing stranger. 
(2) It is to the finder's interest to know the value of any such relics before selling them. 
Finders are therefore invited to apply for assistance in obtaining such information. 
(3) If the relics are of Gold or Silver, and are what is known as ‘‘ Treasure Trove, " the 
Government — as far as it has the power — has promised to give the finders what is practically their 
market value. 
(4) On a discover!’ of relics finders should apply to Mr. of , at 
who has consented to give what advice he can. This advice will be given gratuituously and in a 
friendly spirit. 
(5) It IS unnecessary to clean the articles. 
H. Norman Gray, 
Honorary Secretary. 
334, Commercial Koad, 
London K. 
The pamphlet, however, consi.sts chiefly of notes compiled by Dr. William 
Martin for the use of referees appointed by the South Eastern Union of Scientific 
■Societies to assist in the preservation of Treasure Trove and other Uelics. We 
find here discussed the law of first finding, and of treasure trove, and we learn 
that treasure trove consists of gold or silver advertently deposited anywhere with- 
out abandonment, the owner being unknown. The chief difficulty of the appli- 
