1901] MICROSCOPICAL JOURNAL. 119 
ticle is by our old friend, Dr. W. P. Manton, Editor of 
The Microscope in the days when it thrived in Detroit. 
Algae.—A catalogue of 734 publications, with prices in 
marks, has been issued by W. Junk, Second-Hand Book- 
seller,Berlin, N. W.5, Germany, devoted entirely to alga, 
diatoms and desmids. I have written for ten copies to 
send to subscribers who apply therefor. The first ten 
who apply will recieve them and others will be supplied 
from a later lot, after I see how many are desired. 
Hypnotism. By L. W. DeLaurence, Pittsburg, Pa. 8vo. 
256 pp. 18 plates. Owing to these beautiful illustrative 
plates, this is the best book on the subject which we have 
seen. The book is written for physicians and scholars, 
as well as others. We do not recommend that others try 
to use this great but little-understood force in Nature, 
though there is no harm in reading up the subject. The 
author goes into the broad field of suggestion and its ap- 
plication in various ways such as in dentistry, mental 
healing, etc. He treats also that curious topic of self- 
hypnosis. As regards crime, his statements are import- 
ant in a Medico-Legal sense. He seeks to connect the do- 
ings of Indian fakirs with hypnotism and writes a chap- 
ter on magnetic healing. The paper and printing are ex- 
cellent but the cover a little flashy. The author’s picture 
appears in many of the plates and yet he seems to think 
that his good-looks warrant it as a frontispiece also. He 
is rather good looking. His book comes from Hennberry 
Company, Chicago. 
Atoms and Energies. By D. A. Murray. 12 mo. 202pp. 
$1.25. Thisis the discussion of the elements of physics. 
The author does not blindly accept the theory of the ether 
but finds a]l nature included in (L) an attractive energy 
such as is seen iu gravity, (2) an expansive energy as is 
shown by heat, (3) what we call matter composed of atoms. 
With these three, he proceeds to explain cohesion, adhe- 
