316 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



EECORD OF WHITEFISH EGGS KECEIVED AND HATCHED AT DRUID 

 HILL HATCHING HOUSE, BALTIMOEE, MD. 



I.— Lot of 50,000 received Becemher 20, 1882. 



Of this lot 49,407 hatched February 12, 1883; of which 54 fish were 

 lost iu handling, making a total loss of 047. The average temperature of 

 air during incubation was 34^°, of water 38^°. The fry were deposited as 

 follows : 



II.— io^ of 100,000 received Becemher 30, 1882. 



Of this lot 95,500 hatched February 5,1883, and the fry were deposited 

 as follows : 



Date. 



1883. 

 Feb. 14 

 14 

 15 

 15 

 19 

 21 

 23 

 27 

 28 



Place. 



North East Eiver, Cecil County, Maryland 



Millington, Chester Eiver, Kent County 



Octoraria Kiver, Cecil Connty , Maryland 



Big Elk River, Cecil County, Maryland 



Patiipsco River, Howard County, Maryland 



Curtis Creet, Anne Arund( I County, Maryland 



Mount Winans, Baltimoic County, Maryland 



Laurel, Patuxeut River, Howard Connty, Maryland 

 Trausquakiug Eiver, Dorchester Countiy, Maryland 



Total 



Number. 



95, 500 



A NEW HATCHING BOX. — Prof. Cossar Ewart, F. R. S., has devised 

 a new hatching box for adhesive eggs, to take the place of the "Clark" 

 hatching box, The advantage of Prof. Ewart's box is that the glasses 

 are arranged in a horizontal position, so that the embryos when hatched 

 pass at once into comparatively still water, instead of having to run over 

 and under a varying number of vertical glass plates. 



Transferring fertilized herring eggs to spawning beds. — 

 Professor Ewart has described an easy method of stocking spawning 

 beds, capable of being readily used by the fishermen tliemselves. AH 

 that was required was an ordinary wooden tub and a shallow, galvan- 

 ized-iron tray about 20 inches in diameter, with the bottom consisting of 

 two portions each hinged to a central bar so as to open downwards. 

 The object iu view is to deposit stones on the spawning bed coated with 

 fertihzed ova. To do this the tray is placed in the tub, which is then 



