1909- Foster. — Obsetvations on Weights of Birds' Eggs. 219 



RazorbiIvI, {Alca torda). 



Inch. Inch. Grains. Inch. Inch. Grains* 



(fl) 3-05 X i'85 — i,36ii (3) 2-8 X i'9 X 1,384 



GUII.I.EMOT {Uria troile). 

 Inch. Inch. Grains. Inch. Inch. Grains 



(fl) 3-4 X 2'02 ~ 1,727^ ic) 3X52 X 2- = 1,506 



{b) 3-38 X r97 — 1,71 1 (^) 3* X 1*85 = 1,305 



Manx Shearwater {Puffinus anglorum). 

 Inch. Inch. Grains, Inch. Inch. Grains, 



{a) 2-3 X 1-55 = 762^ (Ji) 2-17 X i'63 ™ 807^ 



Hillsborough, Co. Down. 



REVIEWS. 



AN ISLAND SURVEY. 



A Guide to the Natural History of the Isle of Wight. Edited 

 by Frank Mori^Ey, F.L.S. London : Wesley and Son, 1909. Price 

 8^. ^d. net. 

 This bulky volume of five hundred and sixty pages consists, as its 

 title page indicates, of a series of contributions by specialists relating to 

 the various branches of natural history and kindred subjects. After 

 the Introduction comes a very readable survey of the phj^siographical 

 and geological features of the island, illustrated with several very clearly 

 drawn sections. Then follows, less than two pages long, the shortest 

 chapter in the book, on Earthquakes ! We are informed that " at the 

 present time the island itself does not produce earthquakes," but the 

 presence of Professor Milne's observatory on the island probably supplies 

 the justification for the chapter. Chapters on palaeolithic implements 

 and on meteorology are also found, and the remainder (seven-eighths of 

 the whole book) consists of lists of species in the various groups of 

 animals and plants known to occur in the Isle of Wight. 



These lists vary in completeness, that of the flowering plants and ferns 

 being, we are informed, practically complete, whereas others are as yet 

 some distance from this ideal. The publication of these incomplete 

 lists should serve as a stimulus to local workers in the various branches 

 of natural history to extend and complete them. Accompanying the 

 lists are brief notes on the localities and frequency of the species 

 recorded, and the lists are usually preceded by paragraphs dealing with 

 the characters of the groups and with the literature concerning them. 

 In some cases the classification adopted in the lists is very antique, 

 in the case of the fungi, for instance, one finds Asjfergillus glaucus and 



