REVIEWS. 
295 
Iron and Steel. By Kniit StyfFe. Translated from the Swedish by C. P. 
Sandberg. London: John Murray, 1869. To those who are engaged in 
the study of the relation between the minute chemical constitution and the 
physical properties of iron and steel, we commend this volume. It is pre- 
faced by Dr. Percy, and it contains some very valuable records of experi- 
ments by the author on the influence of phosphorus in cast iron and steel. 
The Birds of Sherwood Forest. By W. J. Sterland. London: Peeve and 
Co., 1869. This is in great measure a reprint of some papers which appeared 
a couple of years ago in the Field. It contains matter which will interest 
the general local ornithologist, but it can hardly be called a scientific work. 
The author shows himself to be a patient and shrewd observer of nature. 
