A Superior Microscope 
Chosen by educators generally because 
of their known efficiency, practicability 
in operation, convenience in use, and 
_ durability. 
Rausch [omb 
Microscopes 
Unusual space is provided for the 
manipulation of objects by the long 
curved handle arm with a large stage. 
All fine adjustment parts and bearings 
are thoroughly protected. Ample room 
for free play of the fingers is provided 
between the edge of the fine adjustment 
and the arm. 
Price Model F2, $31.50 
Special Price to Schools 
Catalog on School Equipment sent pre- 
paid upon request. 
Bausch €9 lomb Optical G. 
412 ST. PAUL STREET ROCHESTER, N.Y. 
o 
"| Thus spoke the Auditor. 
He was speaking of the | 
e 
Remington 
Adding and Subtracting — 
ew rite re 
(Wahl Adding Mechanism) Pe | 
This machine does something that only the | 
brain, directing the hand, has hitherto been able § 
to do—that is, write and add (or subtract) on the § 
same page. ‘ Biri 
But this is not all. It does such work more 
easily, more rapidly, and more accuraiely than the © 
human brain has ever performed similar labor. 
' Thus the machine is human in what it does ~ 
and super-human in the way it does it. o 
Illustrated booklet sent on request 
Remington Typewriter Company i 
(Incorporated) 
325-331 Broadway, New York 
Branches Everywhere 
- Announcement 
The University of Chicago Press will pub- — 
lish about October 1 another book by Jacques 
Loeb. The new work, entitled “Artificial — 
Parthenogenesis and Fertilization,’ presents — 
the first complete treatment of the subject | 
of artificial parthenogenesis in English. Pro- | 
fessor Loeb published four yearsago abookin | 
German under the title “Die chemische Ent- 
wicklungserregung des tierischen Eies.” Mr. | 
W. O. R. King, of the University of Leeds, — 
England, translated the book into English, — 
and the translation has been revised, en- §- 
larged, and brought up to date by Professor — 
Loeb. It gives, as the author says in the © 
preface, an account of the various methods 
by which unfertilized eggs can be caused to 
spermatozoon induces development. Since | 
the problem of fertilization is intimately con- J 
nected with so many different problems of ~ 
physiology and pathology, the bearing of ~ 
the facts recorded and discussed in the book ~ 
goes beyond the special problem indicated 
by the title. 
ies 
hye 
