liark liorci- work at Ikuh-on-tlu-Hinlson 



I'wii while piiu-s takt-n September 22, iqoi 



Same, photographed April 1902. Tliese two illustrate the rajjidity with 



which trees ma\- l)e killet! In- bark borers. T o m i c u s calli- 



l^rraphus Germ, and T. jj i n i Sa\- were responsible for most of 



the injury. 



766 



