Botany and Zoology. 475 
distinguishing feature of the book. Lastly, it must be said that 
it is in no sense a compilation. From first to last, it is constructed 
from new and fresh material, and by a master, whose name is 
associated with the successful treatment of the most difficult 
problems in vegetable morphology and histology. His recent 
minute in every respect as the most exacting student could possi- 
bly demand. A single illustration must suffi 
the wealth of material, and that. the author is sometimes apt to 
conjoin accounts of methods and results without sufficient atten- 
tion to the requirements of the style naturally looked for in a 
scientific treatise. But this habit of thought lends a great charm 
to these discursive and almost colloquial conferences with the 
upils, whom he takes into his confidence in this admirable guide. 
t is to be hoped that the promised English translation will be as 
well done as are the translations of some other recent German 
botanical works. G. L. G. 
5. The Essentials of Botany; by Professor C. E. Bussey. pp. 
292, 8vo.—This is an abridgment of a useful work by the same 
a8 .L. & 
6. Ornithorhynchus and Echidna.—The announcement of the 
discovery of oviparous reproduction in the Monotremes by 
Mr. W. H. Caldwell, made before the British Association at os 
