of the Fishery Board for Scotland. 
193 
sca-watcr. It is situated 27 feet from the hatching-house and on 
higher ground, so that the level of the water in it will be above 
the level of the hatching-boxes in the present house. At the side 
next the hatching-house is the overflow shoot by which the floating ova 
are carried from the tank to the spawn-collector, within a compartment 
situated between the pond and the hatchery ; and here also are placed in 
the bottom of the tank two 4-inch pipes, tu be connected with the waste 
and drain pipes in order to empty the tank, or remove polluted water 
when required. There are also three 2-inch pipes placed at different 
levels ; and, as the spawning pond will also be used as a reservoir for the 
supply of water to the tanks of the laboratory (fig. D), a pipe has been 
carried through into the laboratory (C), to be joined to the existing piping 
for that purpose. 
To the front of the hatchery and spawning pond — between them and 
the harbour — is the boiler and pump-house (fig. E), with a concrete floor, 
and measuring 24 feet long by 18 feet in breadth. The boiler is 
of the locomotive type, made of steel, by Robey & Co., Lincoln, and 
of 8-horse power. The pumping apparatus consists of two Worthing- 
ton, brass-lined, direct-acting steam pumps, each capable of throwing a 
minimum quantity of 2,040 gallons per hour, and a maximum of nearly 
double. The piping will be so arranged that water may be pumped 
directly from the harbour or from the creeks. 
The fourth requisite for the hatchery — the enclosure of the sea-creeks — 
shown on the plan has not yet been carried out. These tidal creeks (F, G), 
according to the report of the engineers, will contain, when enclosed, a 
body of sea- water of a superficial area of 13,545 square feet, a maxi- 
mum depth of 16 feet, and contents of 560,000 gallons. The 
whole of this will be required for the collection and storage of the 
adult fish to be used at the spawning time, and for rearing the fry. 
Pending this, it has been decided to convert the small sub-creek (H) into a 
tidal pond by the construction of a concrete wall in which a small 
number of fish may be preserved.' 35 ' The gradual collection of the fish prior 
to the spawning period has been shown to be absolutely essential- 
in order to obtain the necessary quantity of spawn at the proper time. 
* It may be stated that the hatchery is within the precincts of one of the most 
historic spots in' Scotland — the old Castle of Dunbar, associated with Scottish history 
for 800 years, and dismantled subsequent to the flight of Queen Mary and Both well, 
who took refuge in it (I. James VI, c. 35, 1567). A portion of the sub-creek 
referred to, now being converted into a peaceful fish-pond, formed the dungeon in 
which the poet, Gavin Douglas, Bishop of Dunkeld, and many other illustrious 
prisoners were confined. A dark and tortuous passage still exists leading upwards 
towards the citadel. The westward opening is conjectured to have been the portal 
through which Sir Alexander Ramsay of Dalhousie brought succour to Black Agnes, 
during the siege of the Castle by the English under the Earls of Salisbury and 
Arundel, in 1338 ; and it was probably by this postern that King Edward II. 
escaped in a fishing boat, after his disastrous defeat at Bannockburn in 1314. 
N 
