X prefacb:. 



troller, figs. 32, 4G, 50, 60, 74, 76, 77, 90, 92, 100, 106, 108, 109, 

 111, 124, 134, 138, 140, 141, 143, 145, 152, 153, 156, and 157— some 

 purchased and some lent with Sir Charles "Whitehead's pei-mission. 

 From Dr Fleming's translation of Neumann's ' Parasitic Diseases of 

 Domestic Animals,' figs. 5, 7, 15, 17, 18, 24, 35, 36, 37, 57, 58, 160, 

 and 164 have been kindly lent by translator and publishers. Figs. 

 1, 8, 47, 62, 63, 79, 107, 161, 167, 171, 172, 177, 178, 179, 198, 199, 

 200, 201, 202, 205, 219, 222, 241, 251, 256, are from Dr Nicholson's 

 'Manual of Zoology ; figs. 19, 20, 23, 25, 26, 31, 34, 59, 71, 91, 92, 

 96, 97, 98, 99, 110, 112, 113, 144, 150, 158, 159 are original drawings 

 by the author, the blocks being lent by the S.-E. Agricultural 

 College, from the College Journal. From Jlessrs Churchill the 

 following figures from Chauveau's ' Comparative Anatomy of 

 Domesticated Animals' have been purchased— viz., figs. 181, 182, 

 183, 184, 188, 189, 191, 193, 194, 196, 208, 214, 236, 238, 239, 242, 

 243, 244, 245, 247, 248, 249, and 250. Fig. 159 has been reproduced 

 from the same work, with the publishers' permission. 



F'rom Curtis's ' Farm Insects ' the following have been purchased, 

 figs. 68, 69, 70, 81, 84, 95, 104, 105, 125, 128, 133, 142, 149, and 163. 

 Fig. 186 is reproduced from one of Sir William Flower's drawings in 

 his ' Osteology of the Mammalia.' The figures of Eelworms, figs. 21 

 and 29, are reproduced with the permission of Professor Eitsema 

 Ens ; and tig. 118 is a reproduction from Miss Ormerod's ' ^Manual of 

 Injurious Insects.' The Department of Agriculture, U.S.A., kindlj' 

 allowed me to reproduce Dr Howard's figures of the Pear Midge and 

 San Jose Scale, figs. 121 and 165 (part). Figs. 170, 253, 255 ai'e 

 from the British Museum (luides. From Foster and Balfour's 

 ' Embryology,' figs. 229, 231, 232, 233, 234, 235, 237 are reproduced, 

 with the permission of Professor Adam Sedgwick. 



Fig. 61 is reproduced from several figures in Neumann's ' Parasitic 

 Diseases of Domestic Animals,' and also part of fig. 3. 



Figs. 151 and 168 are from 'Insect Life' (original), with the 

 permission of Messrs Methuen & Co. 



Figs. 82, 102, 103 from the writer's ' Insect and other Allied Pests 

 of Orchard, Bush, and Hothouse Fruits.' 



To all who have helped me in this work, by lending their blocks, 

 or allowing their figures to be reproduced, or by lending specimens, 

 I offer my thanks. 



F. V. T. 



