MOSSES 



WITH A HAND-LENS. 



Price, $1.50 on all orders received before April ist. After 

 that, $1.75. A limited signed edition of 25 copies with actual 

 specimens of 200 species mounted on interleaved blank pages is 

 in preparation. Price $15.00. 



Mosses with Hand-Lens and Microscope, a quarto work 

 issued in paper parts of about 80 pages, is on the same plan as 

 the other but is more advanced and complete. It is printed by 

 McFarland on the finest coated paper made and is a work of art 

 as well as of science. A supplement will be issued, making it a 

 complete manual of all the mosses of the region. 



Prof. Charles R. Barnes of the University of Chicago says 

 in the Botanical Gazette (June, 1904) published by the same 

 institution : 



" The second part of Grout's Mosses with Hand-lens and 

 Microscope well sustains the promise of its predessor. * * * * 

 All in all, the work is admirable both in conception and in ex- 

 ecution. It is difficult to understand how it can be sold at the 

 very low price asked." 



Part I and II now ready, $1.00 per part. Upon the issue 

 of part V all new orders will be $1.25 per part. 



For the convenience of moss students I have arranged to 

 furnish a Queen coddington lens of about 10 diameters magnifying 

 power for $1.50, and an excellent high power aplanatic triplet, 

 one-quarier inch focus and about 40 diameters magnifying power, 

 for $5.00. A discount of 10 per cent, will be allowed purchasers 

 of either of my books, also to subscribers to the Bryologist. I 

 can also furnish any extant work on mosses subject to the usual 

 restrictions in the case of books that are rare or out of print. 



All moss students should subscribe to the Bryologist, a 16-20 

 page bimonthly devoted to the study of mosses, hepatics, and 

 lichens. Fully illustrated. One dollar per year. 



A. J. GROUT, 



360 Lenox Road, 



Brooklyn, N. Y. 



