1900.] FLIES INJURIOUS TO STOCK 305 



also would consider) nicely, brought up to date ; and in 

 G. equi (Horse Bot fly, fig. 10) I have really handled the only 

 bit of the subject that was not pleasant, so that I do not 

 think anybody could object. The two above-mentioned 

 papers are about ready for press. But what I wish very 

 much is that you would kindly let me know your view of 

 it. Would it be better to print the subjects in my usual 

 way, as leaflets, or make them into a little pamphlet ? 

 G. eqni would fit nicely into a four-page leaflet. (E. ovis, 

 (Sheep Nostril fly), I think would be shorter ; and the 

 short papers which would go nicely along with their more 

 important brethren in a pamphlet rather puzzle me how to 

 deal with if in leaflets. I have excellent figures, and in an 

 idea (possibly erroneous) of bringing the sequence out for 

 the Agricultural Education Committee, I wrote a sort of little 

 " fresh " preface on the creatures collectively. As I am sure 



I, Fly, magnified, line showing natural length ; 2, maggot ; 3, mouth 

 hooks of maggot ; and 4, tail segment, showing spiracles, and lobes, 

 acting as organs of progression all magnified. (After Brauer.) 



FIG. 76. SHEEP'S NOSTRIL FLY, CESTRUS or/s, LINN. 



you will allow me the pleasure of thinking myself in some 

 degree a colleague of yours (and if I drive well at work I 

 should hope to have it ready for your winter session), I 

 should be exceedingly obliged if you would tell me whether 

 you think pamphlet or leaflet would be best. [The pam- 

 phlet form was ultimately adopted, and it was published as 

 " Flies Injurious to Stock," &c., price sixpence.] 



August 2, 1900. 



I am very glad that Dr. Fream gave a good notice in the 

 "Times," of your intended series of lectures on Colonial 

 and Indian Agriculture it will be a noble work, and I am 

 glad you are enjoying the preparation. 



" Reminiscences " are lying in a drawer, for there is such 

 a quantity of work there is no spare time. When I have got 



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