32 PREmUMS OFFERED BY THE SOCIETY IN 1880. 



J- 16. On the Insects most injurious to Forest Trees, and the 



f" diseases occasioned by them, and the best means of prevention 

 — Twenty Sovereigns. To he lodged by 1st November 1880. 



The Report to be accompanied, where practicable, by specimens of the 

 insects. 



17. On the effects of the severe Frost of December 1879 

 on Trees and Shrubs generally, in different soils and situations, 

 and destruction to Woods and Trees by the gale of the 28th 

 December 1879— The Medium Gold Medal, or Five Sovereigns. 

 To be lodged bv 1st November 1880. 



