1901] MICROSCOPICAL JOURNAL. 209 
ume which aims at giving the analyst, student, and others 
who may have to examine materials for adulteration, ete., — 
a basis on which to work. For this purpose a number of 
photographs have been taken with the aid of a microscope 
and reproduced in the book with the magnifications in di- 
ameters exactly stated. Starch grains are peculiarly un- 
satisfactory subjects from a photographic standpoint, and 
the internal markings by which the student is usually di- 
rected do not appear ponagrics ously in the photographs 
used. 
We are not sure the aqueous medium that was used 
for the specimens is the best mountant, and we have of- 
ten found that the details of such subjects are better dis- 
played in some media than in others. Still the basis for 
working and deductions are sound, the contours, and sizes 
of the various starches are at once apparent, and these, 
after all, are the principal features which must guide any 
comparisons or examinations. We believe that the book 
will be found an extremely useful one to those interested 
in the subject and possibly to microscopists generally, for 
starch grains are easily secured, and there is acorn | 
ble interest attaching to their examination. 
Mosszes WITH A HAND-LENS.—Printed on excellent paper 
copiously illustrated (8 full-page plates and 44 figures in- 
serted in the text), with new and artistic drawings from 
nature. No old text-books illustrations, complete glossary, 
Two easy and accurate keys, one based on habitat, the 
other on structure. It makes the study of mosses as easy 
as that of the flowering plants. Price $1.10. “Even at 
this day I can vividly recall my experiences when I be- 
gan the study of the mosses, with no one to go to for as- 
sistance,and no bookavailable except Lesquereur & James’ 
Manual. Had such a book as Mosses with a Hand-lens 
been then accessible, it would have saved me many dis- 
appointments, not to speak of the loss of much valuable 
time. I can therefore most cordially commend this 
