BY R. ETHBRIDGB, JUNE. 15 



contact with the first return of the second loop, again returns on 

 itself to the middle line of the boomerang, pursues its course 

 along that plane, and terminates as it commenced in a free end ; 

 hence there are in this figure four turns to the left, and two to 

 right. When there are more than three incised grooves, the 

 additional ones are made by interpolation. Some of the inter- 

 spaces of the loops are quite plain, one bears seven crosses in three 

 and a half pairs, three others have continuous zig-zag incised 

 lines, whilst outside the central loop on the convex side of the 

 boomerang, the marginal space is oc(3upied by a similar zig-zag, or 

 almost festoon-like, figure of two incised grooves. One of the 

 apices is similarly marked transversely, whilst the other is devoid 

 of sculpture, but just within the return of the loop, and above 

 the free end is a figure resembling an unsymmetrical letter W. 



The length of this weapon across the curve is two feet four 

 inches ; the breadth two and a quarter inches ; and the weight 

 ten and a half ounces. It is from the collection of Mr. P. R. 

 Pedley, and was obtained at St. George on the Balonne River, a 

 branch of the Maranoa River, in South-east Queensland. 



The second boomerang (Fig. 3) differs from Fig. 4 only in detail. 

 The loops are identical in number and execution, but at the 

 returning points instead of four deflections to the left and two to 

 the right, there are two and four respectively. The interspaces 

 are also sculptured in the same manner, although not within 

 corresponding loops. The apices on the contrary are differently 

 marked, both bearing a diagonal of four incised lines, the spaces 

 on either side carrying sharp v-shaped figures. 



The length is two feet four inches; the breadth two and a half 

 inches; and the weight eleven ounces. It is from the same 

 locality and collection as the last. 



The third weapon (Fig. 2) resembles Fig. 3, except that only two 

 loops have been incised, almost equally dividing the surface, with 

 two deflections to the right and two to the left. Only one inter- 

 space bears a single zig-zag line, the others are devoid of sculpture. 

 At one end the loop is contiguous to the apex, at the other the 



