Reviews and Book Notices. 
77 
2. The two species are : Pugnax pugnus { Martin); Pugnax 
cf. sulcatus (J. de C. Sow). 
3. The height and breadth of Pugnax pugnus increase at 
a steady rate and thus give no wide variation in the percentage 
ratios. 
4. There is a high degree of correlation between thickness 
and breadth, and depth and thickness in both species, as 
demonstrated by the scatter diagrams. 
Finally, fifty specimens of Pugnax pugnus ( Martin) have 
been selected and the three variants length, breadth and thickness 
plotted on a graph Fig. 7. This shews that the length is 
always greater than the thickness and less than the breadth. 
I wish to record my thanks to Professor A. E. Trueman and 
to Mr. A. Stuart, M.Sc., for their help and criticism during 
the work. 
Bibliography: 
1. Vernon: Variation in Animals and Plants. 
2. Martin : Petrifacta Derbiensia, Plate 22. 
3. Davidson : British Fossil Brachiopoda, p. 98. 
4. Parkinson : Q.J.G.S., 1926, p. 237. 
5. Sowerby, J. de C. : Mineral Conchology , Vol. 5, p. 153, plate 495, 1. 
6. Parkinson : loc. cit., plate 14, 2a. 
In addition see : 
Phillips : Geology of Yorkshire , Pt. 2, plate 12. 
Brown : Fossil Conchology , Plate 56. 
Hall & Clarke : Nat. Hist., New York, Part 6, Palaeo, Vol. 8, 
Brachiopda. 
REVIEWS AND BOOK NOTICES. 
A Romany in the Country, by G. Bramwell Evens. London : 
The Epworth Press, 182 pp., 3/6. We have previously had the pleasure 
of referring to 1 The Traihp’s ’ delightful stories. He continues them 
with the present volume, which is not only illustrated by reproductions 
from photographs, but by extraordinary quaint drawings by his son, 
G. K. Evens. One of the photographs shows a young cuckoo in the act of 
heaving out of the nest the hedge sparrow’s egg, and the attitudes assumed 
by this day-old youngster are very human. How Animals Eat ; How 
Birds Fly; Early Nests; Corncrake; Otter; and a whole host of animals 
as well as general notes on Keeper and Poacher ; Harvest Field ; etc., 
fill this delightful volume. 
Australian Finches in Bush and Aviary, by Neville W. Cayley. 
London : The Australian Book Co., 16 Farringdon Avenue, xix.-|- 256 pp. , 
12/6 net. This volume, published by Angus & Robertson, of Australia, 
will appeal equally to keepers of aviaries and field naturalists alike. 
The wealth of small finches and similar birds in Australia is extra- 
ordinary, and in one case nearly 40 species of finch are described. The 
photographs and sketches of the birds and their nests, the maps showing 
distribution and the coloured illustrations, as well as typical finch 
aviaries, assist in making the book invaluable to bird fanciers. There 
are also chapters on Among the Finches in their Natural Haunts, by 
E. W. Jones ; General Hints on Housing, by Frank Buckle ; Good 
1033 April 1 
