10 Oct., 1917.] Hints on Dressing a Saw. 631 



bait. Two ounces of formalin to 1 |niit of milk, exposed in shallow 

 plates, with a piece of bread in the centre for the flies to alight upon, is 

 the metliod .suggested. The burning of ]iure prytlienum powder, or 

 20 to 30 drops of carbolic acid on a liot shovel or like receptacle has 

 been recommended as a means of riddiiig a room of flies. As tlie fumes 

 do not kill all the flies, but only stupify a certain portion, flies should be 

 swept up before they have an opportunity to recover. 



In the Goulbuni Valley district, a home-made trap is sometimes 

 employed, and, as it has the merits of efficiency and cheapness, combined 

 with simplicity of con.struction, it can be recommended. It consists 

 simply of a box (a kerosene case is a handy size for a stable, byre, or 

 out oi' doors, a smaller sized box will do for indoor use). The method 

 of construction is as follows: — An oi)ening is made in both ends of the 

 hox as .showi in the illustration, and a piece if fly^proof wire is fitted 

 over each aperture. This piece of wire has two or three holes about 

 3-16 of an inch in diameter placed near the centre, say, 3 inches apart, 

 to allow the flies to enter. All that is then required is to hinge a portion 

 of the case so as to form a door, and bait the trap with a fair-sized 

 lump of stale crust of bread soaked in milk, which should be suspended 

 from the roof of the trap by a wire or on a piece of tin. If the inlet holes 

 were made somewhat larger and offal were used as a bait, this device 

 could also be used as a blow-fly trap. 



HINTS ON DRESSING A SAW. 



Bi/ J. J. JllcJcetts. Dairy Supervisor. 



Nothing detracts so much from the general appearance of farm or 

 dairy premises as dilapidated buildings or fencing. Many homes 

 could be altogether altered in appearance in comparatively little time 

 by a handy man repairing broken gates and fencing and tidying up the 

 places generally. Often, however, a man will put off such odd carpentry 

 jobs, owing to his not having a suitable saw to work with. 



On a farm there are many calls for the hand and crosscut saws, 

 and in unskilled hands these tools soon get out of order and become 

 almost useless, but by closely following out the instructions here set 

 out any one should be able to put a saw into working order. 



In dressing a saw, three operations are necessary, viz. — 



(1) Stripping. 



(2) Setting. 



(3) Filing or sharpening. 



Stripping, as it is termed, is making all the teeth of an even length 

 by running a file flat on its side along their points. By this operation 

 the longer ones are cut down to the level of the shorter. If the teeth 

 are not uniform a saw will "run," i.e.. it will not cut straight, and a 

 bad fitting joint in timber will result. 



A very handy device for holding a file for this operation is shown 

 in the figures in Plate 1, whicli enables a person to apply the same 

 pressure all along the saw, and in addition acts as a guide for keeping 

 the file parallel, thus obviating the danger of tearing the user's liand 

 on the teeth. 



