No. 25. Tree nearly dead from the disease. (July the two lower left-hand 

 braiu-hes remain alive. Seeue near Cold Spring, New York. — Photoriruph &i/ Prof. 

 Collins. 



No. 26. Chestnut trees on Long Island. New York, showing the effect of the 

 girdling of the tree by the chestnut bark disease. — I'lKjtofjraph by Prof. Collins. 



