BOTANICAL ABSTRACTS 



— is an index of international botanical progress. 



— stands for accuracy, completeness, and prompt publication. 



— published 3052 entries in Volumes I and II. 



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



and IV. 



— 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 Algeria, South Africa, East African Protectorate, British 

 Central Africa, Portuguese East Africa, Union of South Africa, Argentina, Brazil, 

 Ecuador, Paraguay, Australia, British Guiana, British West Indies, Canada, China, 

 Cochin-China, Cuba, Denmark, Dutch East Indies, Egypt, England, Federated 

 Malay States, France, Hawaii, Holland, India, Ireland, Italy, Japan, Mexico, New 

 Zealand, Norway, Peru, Philippine Islands, Portugal, Porto Rico, Scotland, Sweden. 

 Switzerland, Tunis, Wales, and in every State in the United States of North America, 



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



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Issued Monthly. Two Volumes a Year 



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



Current Volumes: III and IV, January 1920 to December 1920, inch 



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Please enter a subscription for Botanical Abstracts, Vols. Ill and IV (1920 volumes), 

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The Back Volumes iVols. I and II) are out of print. 



// is estimated that between 5000 and G000 entries will appear in Volumes III 

 and IV, January I'J.'O -December 1920 inclusive 



BOTANIC \L ABSTRACTS, VOL. Ill, NO. 5. 



