253 
1893-94.] Mr H. N. Dickson on a Neiv Water-Bottle. 
ing arrangement, FE, I was fortunate in having ready to hand in a 
piece of apparatus devised by Dr Mill for getting the Eung 
messengers over a knot or short splice in a sounding line, which he 
was good enough to lend me for application to its own proper pur- 
poses during our work. It is essentially the same as the head of 
Fig. 1. 
Fig. 2. 
the Scottish reversing frame. By the aid of a brass messenger sent 
down the line, the bracket E is allowed to turn over : to E is 
attached a small brass hook, which of course turns with it, and 
which fits into a ring at the upper end of a rod DE, jointed to D. 
