ELEMENTARY PALA:ONTOLOGY. 
ii ea Se ast lg! for sea Students, by Henry Woops, 
222 pp. 8vo. Cambridge University Press, 1893. 
Tuts first volume of the Cambridge Natural Science Manuals, 
recently issued, will be welcomed by students of geology in this 
country. With the exception of the much larger work of Nicholson 
and Lydekker, no convenient manual of paleontology has hitherto 
appeared in the English language, and the present work therefore 
appeals at once to a large class of readers. The vertebrates are 
features, with a full description of such hard parts as are preserved 
in fossils; a classification noting the characters of the genera 
important to the geologist ; and a sketch of the distribution in time 
of the various forms. The treatment of the subject is throughout 
that of a practical teacher: clearness and conciseness are secured at 
the expense of a certain ‘cut-and-dried’ style, which is perhaps — 
inseparable from a brief survey of a wide subject. In spite of the | 
necessary condensation, however, the difficulties felt by students are 
fairly met, the structure of extinct forms being, so far as is possible, 
interpreted by comparison with their living analogues. 
ook is illustrated by 56 figures, many of which are specially 
drawn for this work, and these are chosen to illustrate different 
structural types, the author wisely considering that, as regards generic 
aracters, no figures can take the place of actual specimens. A list 
of references for more advanced students and a full index conclude 
the volume.—A.H 
NOTES AND NEWS. 
ong the most valuable eg big eae to bo sai science in recent times 
f Mr. G. Mas a di uc 
€ toed estigations o' se destructive to sugar 
in the West ‘ These’ are abt aad: mi nately ‘dileibel in ‘ Annals of 
Botany, vol. vii., p. 515-532. Hitherto, little or nothing was definitely known 
to the cause of the di e it was ght to be due to insects, but 
nabl 
experim ents he has succeede é in beeping out its life-history. He has called the 
o 
ments wer ae on su 
oO 
ri 
rs) 
. 
re] 
es which were growing in the Lily-house at Kew, 
p 
Sh 
rs) 
a 2° 
=) 
. 
be 
satisfactory. Evidently, the apy te is ee a hae ophyte and 
moreover, Mr. Massee suggests a nu pre ons by whi ch the taiiges can 
be kept within bounds. The article i is " peautifally iMlnstrated, and is well worth 
the careful study of mycologists 
Revere 
Naturalist, 
