TABLE OF CONTENTS 



Page. 



B ^torical Introduction, 7 



- icts as carriers of fungi and bacterial diseases of plants, 7, 8, 9, 10, 11 



insects as carriers of the chestnut blight fungus, 12,13,14,15 



Method, 15 



Results obtained from the cultures, 17 



Insects from the laboratory and insectary, 17 



Table I. Results tabulated, 18,19 



Insects from the field, 20 



Results from Leptostylus macula, 21 



Table II. Summary of results, 21 



Table III. No. of Endothia parasitica spores, dislodged from 

 the feet and body of Leptostylus macula by its own move- 

 ments, 22 



Comparison of results with those from birds, 22 



Sources of the pycnospores carried, 22,23 



Micro- ,upic examination of the centrifuged sediments, 24 



Table IV. Results tabulated, 25 



Spores of other fungi carried by the insects, 26 



Summary and conclusions, 27 



Literature cited, 28 



Explanation of figures, ; 32,33 



(3) 



