No. 30. Dead chestnut trees along a boulevard near Tvichmond Hill, New York. 

 Note healthy condition of trees of other species. — Photoontph bij Prof. Collins. 



No. 31. Dead and dying sprout growth. Note healthy rondition of tr.-es of other 

 species. Scene at I'ort Jefferson, New York. Photonratih bij I'rof. Collins. 



