LIST OF ILLUSTRATIOxNS. vii. 



Healths Improvement. (Facsimile of Title-page) . . 263 



Theatrum Insectorum. (Facsimile of Title-page) . . 264 



Dipper with Food for its Young. {Photographed by 



Arthur Brook).— Plate 5 . . . . facing 293 



The Pair of Dippers. {Photographed by Arthur Brook) 294 



Dipper about to feed its Young ; Two Young Dippers. 



{Photographed by Arthur Brook) . . . . . . 295 



Section of a Willow showing a hole made by a Green 

 Woodpecker for the purpose of extracting a 

 Larva {natural size) . . . . . . . . . . 330 



