406 QUEENSLAND AGRICULTURAL JOURNAL. [1 May, 1902. 
A NOVEL HARROW-TOOTH. 
A harrow-tooth, that will cut and therefore will not clog, is an invention 
for which Mr. Augustus H. Schaffer, of Ontonagon, Mich., has received a 
atent. 
" The tooth is made of flat spring-steel, is tapered, and is formed with a 
rectangularly-extending flange at its upper edge, which flange is intended to fit 
snugly over a harrow-tooth bar. The one side face of the tooth is convexed 
and the opposing side concaved. Furthermore, the front cutting edge of the 
tooth is sharpened and convexed, and the back concaved. ‘Teeth of this form 
es sae 
cut through the ground and do not clog, but form sharp furrows. After a 
harrow fitted with the teeth has been passed over a field the surface of the 
ground is thoroughly sliced, but still smooth and level. 
Mr. Schaffer intends to apply his invention to harrow-frames of peculiar 
construction. One of his harrow-frames is made of 2 x 24-inch hardwood, with 
longer dimension upright. Six teeth are fitted to each full-length piece. A 
beam, the length of which is as great as the average width of the harrow, is 
attached to the front of the harrow by means of hooks and links. At each end 
of this beam a rod extends backward along the side of the harrow, and is 
attached at a point near the centre of the outside piece. 
Another form of frame is made of steel sections, bent zig-zag and 
connected by links. The beam running across the front of the frame is hinged 
at the middle.— Scientific. American. 
THE TICK PEST. 
The Stock Board has had under consideration the present position of 
matters in regard to the tick pest. The advisability of maintaining the present 
buffer area near the South-eastern border, in view of the outbreak at Nerang, 
was carefully discussed, and it was decided to recommend that the buffer area 
be maintained, with a slight modification, which will exclude Nerang. Con- 
sideration was given to the outbreak at Warwick, but it was concluded that 
this was a matter for the administration of the department. An area 2 miles 
square is to be declared infected, and in this, although all the stock have been 
hand-treated, it is declared that they must also be dipped, for which purpose a 
dip is now under construction. As this is an isolated case, it is hoped 
that the pest will be stamped out. Three applications were received for 
placing Northern stations out of quarantine, but the permission was only given 
in the case of Clonough Station. 
