Reports to the Board of Agriculture. 133 



out th'cit these processes are called into play, and it is largely by 

 their means that the maggots move. 



"Maggots are nearly always found in the various sinus or spaces 

 of the head, and from personal experience I should say that it is 

 in such places that they cause the greatest harm t(j the host. The 

 larvte live in the head for at least nine months. The larvte do not 

 all pupate ' an inch or two under the ground/ as sometimes stated. 

 Tlie most favourite place seems to be just under a tuft of grass, or, 

 where obtainable, a stone. 



" With regard to prevention, two very important tilings are : (<0 

 removal of sheep from infected meadows when the flies are hatching 

 out — the adults will not fly any distance (they appear in June and 

 July) ; {h) placing salt about in small boxes smeared all over with 

 tar, or (c) salt in closed boxes (Walker's method) with round holes 

 above, also smeared with tar. The sheep thus get the tar on their 

 noses, and this wards off the fly- It would be quite impossible to 

 dress large flocks every two or three days over a period of three 

 months — at least, no large flockmaster would be likely to employ 

 such a tedious process : {(V) all diseased sheep should be penned. 



Preventive against Liver Fluke (Distomum hepaticum) 



in Sheep. 



Tn connection with the Board Leaflet (No. 89), on Liver Fluke, 

 the following information was sent : — 



Sulphate of iron is one of the two substances said to be best 

 suited to the treatment of sheep with rot and to act as a preventative, 

 especially when mixed with food-stufts. 



Professor Simonds' receipt is one most usually recorded, viz. : — 

 Linseed oil cake, 1 bushel ; pea meal, 1 bushel ; salt, 4 lbs. ; sulphate 

 of iron, I lb. Well ground together, ^ to 1 pint to each sheep per 

 diem. 



Another receipt is : — 1 drachm sulphate of iro)i ; \ oz. salt. 

 Mixed with bran, crashed oats or cakti for each sheep per diem. 



I certainly do not think any great benefit (as a preventative of 

 Fluke) will be found in salt applied to the land. 



