380 
specimens have been collected or received from correspondents by former 
and present members of the Department of Botany, Indiana Agricultural 
Experimental Station, or by Professor G. N. Hoffer, of the School of Science, 
Purdue University. Unless otherwise stated in the list the specimens are 
in the phytopathological collection of the Station Department of Botany, 
or in the collection of Professor Hoffer. The distribution of the diseases is 
given either by counties, together with the dates of collections when known; 
or by sections of the State in which they are prevalent. If they occur generally 
over the State they are mentioned as common. 
The bibliography includes articles written by Indiana workers and 
pertaining to Indiana plant diseases, published mostly in the bulletins and 
reports of the Indiana Agricultural Experiment Station, Proceedings of 
the Indiana Academy of Science, Transactions of the Indiana Horticultural 
Society, and the Annual Reports of the State Entomologist. It also includes 
several papers presented at meetings by out-of-state scientists, but pertaining 
to diseases common to Indiana and printed in the State publications. Ref- 
erences to the articles dealing with the diseases mentioned in the following 
list are given by number, in the chronological order in which they were 
published. 
In order to make the plant disease survey as complete as possible, co- 
operation is solicited, and the Department of Botany, Agricultural Experi- 
ment Station, Lafayette, will be pleased to receive specimens, especially 
of the less common or unreported diseases. Any valuable information as 
to the prevalence of such diseases, the extent of damage caused, relation to 
weather conditions, ete., will also be appreciated. 
The writer wishes to express his gratitude to Prof. H. 8. Jackson, Chief 
of the Department of Botany, Indiana Agricultural Experiment Station, 
for valuable advice and assistance in the preparation of this list. 
