BOTANICAL ABSTRACTS 



Published Monthly (Volume I, No. 1, was published September, 1918) 



— is an index of international botanical progress. 



— stands for accuracy, completeness, and prompt publication. 



—published the following entries: Vol. 1—1681; Vol. 11—1371; Vol. Ill— 3061; Vol. IV— 1853; 

 Vol. V— 2426; Vol. VI— 2032. 



— refers to more than 2000 serial publications to secure abstracts and citations. 



— accompanies non-English titles with an English translation. 



— publishes all abstracts in English. _ 



— uses a thorough system of cross references. 



— allows the quickest possible reference to all botanical articles, by a typographical arrange- 

 ment that permits prompt reference to author, title, and place of publication. 



— furnishes to workers, having restricted library facilities, information concerning all articles 

 published in the botanical field. 



— furnishes to workers, having access to large libraries, a thorough classification by subjects — 

 an invaluable reference aid and time saver. 



— has been ordered by subscribers in all countries in the world. 



— offers infinitely more as an investment than any other publication issued in this field. 



Four Volumes are published a year. Price per Volume : $ 3.25, net postpaid. 



Orders may be sent to the publishers, or to Maruzen Company, Ltd. (Maruzen Kabushiki- 

 Kaisha), 11 to 15 Nihonbashi Tori-Sanchome, Tokyo; Fukuoka, Osaka, Kyoto and 

 Sendai, Japan. 



Williams & Wilkins Company, Mount Eoyal and Guilford Avenues, Baltimore. Md., U. S. A. 



OO 



m 

 m 



o o o 



a* ^ ns 



ft 





fc: 



mn-m 



im 



<£> O R 



nm m m m * 



tra 



mm* 



*ft 



'ft- 14 A 



mm m % % f 



*#/ 



%%v> 



urn 



m 



m-h 



m 



V& 



m 



#j£. 



u 



mm 



Wt 



r-ft 



X 



mm 



% 



xm 



fU M 



wr«rwr ^ ft 

 m ft 



:^S# 



in 

 ±±± 



w? ^ ^ 



3tL 3tL JfL 



fiSfl 



B 



^ 





IE29 



m 



±1 



-bir 

 HA- 



m ft 

 m m 



O CO OO o o 



ft £*r mmfy&m r 

 m mm m&im& 



mmmm®mftv>mx 



H ft* ftr^i-^ 



7C 



«£ 



t&sg S# 



o 



IhqIehIIh 



WTWIHT^ ft 



1 



si 

 0® 



IS >r 



is 



■o^ ft WtM 





e ( > 



*^1 



itm 



ft® 



3£ffs 



ft 





Ml 



m 



w 



m 



CA' B& 



* JR 



1'4 J!§ 



I- JK 



> I- 



V 



> 



o 



^±±7C± ±±>- 



m ®uicav> 



R 



*r; 



=e 



«. 



n + 



'IE© 



# -^11^ *a-caa-* I¥t 



HA- 



m.^ 



