CONTENTS 
I. Damage to chestnut telephone and telegraph poles by wood-boring in- Page. 
sects Thomas E. Snyder. . 1 
Object of paper 1 
Historical data '1 1 
The chestnut telephone-pole borer (Parandra brunnea Fab.) 3 
Character of the insect 3 
Distribution 4 
Character of the injury 4 
Importance of the problem 5 
Extent of damage and loss 6 
Favorable and unfavorable conditions for destructive work 6 
Associated wood-boring insects 7 
Prevention of the injury 8 
Publications on wood preservation and statistics on poles 11 
II. Biology of the termites of the eastern United States, with preventive and 
remedial measures Thomas E. Snyder. . 13 
Introduction ". 13 
Classification 14 
Historical 16 
Biological experiments 20 
The termitarium 20 
Communal organization 22 
Situation of the nests 22 
Number of individuals in colonies 25 
The different castes — polymorphism 27 
The sense organs 31 
The functions of the castes 32 
The life cycle 33 
The metamorphosis — caste differentiation 33 
Progressive development of nymphs 36 
Seasonal variations in the colony 43 
Eggs 43 
Nymphs of reproductive forms 43 
Neoteinic reproductive forms 44 
Workers 44 
Soldiers 45 
Location of the colony in winter 45 
Duration of development and life 46 
Cannibalism 46 
Situation of the different forms in the nest 47 
The swarm, or so-called nuptial flight 48 
The establishment of the new colonies 49 
Copulation and the rate of egg laying 50 
