380 ILLINOIS STATE ACADEMY OF SCIENCE 



The results of these investigations are being published 

 by Dr. Gr. H. Hoskins and Miss Fredda Reed in the Botan- 

 ical Gazette. The most important of these discoveries 

 was the appearance of a paleozoic angiosperm in one of 

 the Harrisburg Coal Balls.* Among the unpublished 

 •material are several other angiosperm specimens which 

 make the existence of angiosperms in the paleozoic be- 

 yond question. 



Our entire knowledge of the inner structure of pale- 

 ozoic plants has been based upon English and French 

 coal balls. It is to be hoped that the American coal balls 

 which have come under observation will contribute in the 

 near future as rich material as was obtained formerly 

 from England and France, and that our knowledge of 

 plant structure will in this way be greatly enriched from 

 American sources. 



* J. Hobart Hoskins : A Paleozoic Anaiosperm from an American Coal 

 Ball, The Botanical Gazette, Vol. 75, pp. 390-399. 



