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OBJECTIVE FOR SALE 
A Bausch & Lomb 1-12 Achromatic, Oil Immersion Objective, 2mm. focus, numerical aper- 
ture 1.32 (Catalogue No. 1042), belonging to the late Thomas A. Williams, has been placed 
in my hands for sale. The catalogue price of this objective is $38.00. Mrs. Williams offers 
it for $20.00. The lens is in excellent condition, and cannot be told from a new one, other 
than by a few scratches on the case. Address correspondence to H. J. WEBBER, U.S 
Department of Agriculture, Washington, D. C une 



Portraits WADAMIT 
° i ae | 
f Botanists Hot Springs, Ark. 
HE FERN BULLETIN is publishing a Without change 
series of portraits of prominent 
botanists rete is likely to interest all 
connected with the science. Another 


You can leave Chicago in a 
through sleeper any day on 
the Wabash Fast Day Express 

valuable feature is the complete set of ‘ 
i at 11:03 A. M., and be in Hot 
e species and forms of Fguzsetum in — : 
adh Aeevica b Springs next morning at 9:00 
o a being issued free to sub- o’clock. This is the only line 
scril ers. There isa series of articles for via Saint Louis operating a 
beginners, and special attention is paid through sleeper from Chicago 
to the description of new species. to Hot Springs. 
Awarded Grand Prize at Paris. 
>! Write for illustrated booklet iving full 
Sample free. Price of current num- sionetoe about this popular health pg 
ber, 1Sc. Rates will be quoted, — sleeping car reserva- 
tions haneke upon requ 
Address Ticket Office: « 97 Adams Street 
Ghe Fern Bulletin F. A. PALMER, A. G: P. A. 
CHICAGO 
BINGHAMTON, N.Y. 








A : REPORT OF THE EDUCATIONAL COM 
Laboratory Outline MISSION OF THE CITY OF CHICAGO 
of General Chemistry ee oO of fe 5 Gegiile importa connected with 
HIS 
By AL EX Atha oa TO; he W and h ted 
[ ogress in the est, as exerted an im- 
a Ses 2S mense tht in recent reforms inaugurated by the 
Chicago Board of Education. The Commission was appointed 
i y po 





sy np ch pero aise n for the book is its continued by Mayor Carter H. Harrison, in re , 1898, and.th rt 
soeoyagh dina schools i in which it was adopted last was approved by the Board of Education in May of the same 
2 PP. rzmo, cloth, 75 cents, 7e?, year. ‘The first edition was soo xhausted, and the constant 
demand for the same has led to Brag preperag ee sec 
She Uni edition Ngee oyal 8vo, paper, $1.00, % ddress 
versity of Ch : 
ge glee THE UNIVERSITY OF CHICAGO PRESS 
Chicago, SHincts + 
ee 
SECOND-HAND BOOKS 
ON BOTANY AND / will also ortoree ye ty ha ay be hon 
j int end for circ 








HARLES Ca 


ATM EMA TICS [re gockestte 


FOR SALE: a City, low 




