of the Fisher 1/ Board for Scotland. 



331 



passeil by an assistant one by one to the luwer part of the scale, the 

 length measured by the recorder, who sits opposite, and the fish then 

 slid off the table into a basket on deck. 



The measurements used to be recorded first in a note-book and then 

 transferred to forms, but now much time is saved by using the forms 



Fig. 



-Table for Measuring the Fishes. 



themselves, fitted on a frame, as shown in the figure, each measurement 

 being recorded opposite ths proper printed figure by a pencil dot. The 

 most convenient form measures thirteen inches by ten ; it has ten vertical 

 rows of figures, up to 499 mm., and these are divided into 'O cm. groups 

 by horizontal lines (for convenience in computation). Each millimetre 

 figure has four spaces opposite to it, each of which is adapted to contain 

 ten dots. For larger fishes other forms are used. 



The measurements in all cases (except rays) represent the extreme 

 length of the fish from the snout to the end of the caudal fin. 



In carrying on this work on board trawlers it has been found convenient 

 to make use of a small portable deck-house, seven feet by eight and five 

 and a half high, as represented in the adjoining cut, which can be put up 

 or taken down in a few minutes. It consists of a frame-work of twelve 

 stout pitch-pine beams, fitted and pinned into eight strong cast-iron 

 corner sockets, and securely lashed to the ship ; over this is drawn, like a 

 cap, a canvas covex'ing, and over this again a similar covering of tarpaulin 

 both of which are securely fixed by rods and wedges to the bottom of the 

 frame- work, and have a slit in them for doorway. Lined with rugs, and 



