206 



Illinois Natural History Survey Bulletin 



\^ol. 27, Art. 2 



The last circular published. Illinois Trees 

 and Shrubs: Their Insect Enemies, is 

 numbered 47. Some of the circulars have 

 been reprinted more than once, one of 

 them, that on insect collectintr, five times. 

 Diverse in several ways are the articles 

 published in the Biolojiical Notes series. 



tions of typewritten copy. The most re- 

 cent article of the Bioloj^ical Notes is 

 No. 39. 



The fourth of the series of publications 

 now issued by the Illinois Natural His- 

 tory Survey is the manual. Each number 

 is concerned with a single group of the 



A few of the circulars, articles of the Hulletin, and biological notes issued recently by the 

 Illinois Natural History Survey. 



the first of which was issued in Decem- 

 ber, 1933, in mimeographed form. Some 

 of the articles stand as progress reports 

 of extensive projects, later to be subjects 

 of articles in the Bulletin. Some are final 

 reports covering small projects. Some are 

 technical. Some emphasize "how-to-do" 

 and in content and language are similar 

 to the circulars. They are on various 

 subjects and of various lengths. Early 

 articles in this series were mimeographed 

 and they contained no illustrations. Recent 

 articles have contained illustrations and 

 they have been planographed reproduc- 



state Hora or fauna, and each is designed 

 for use by young as well as mature nat- 

 uralists. The first of the manuals was 

 iieldhook of Illinois Wild Flowers. It 

 was issued in 1936, is now out of print, 

 and is being revised. Three other man- 

 uals have been published, one on land 

 snails, one on native shrubs, and one on 

 mammals. 



Preceding the manual series in time, 

 and somewhat similar in character, were 

 the now discontinued final reports, two 

 on birds and one on fishes (Ridgwav 

 1889, 1895; Forbes & Richardson 1908). 



