114 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



added, pour it oft', riuse the eggs through one or two waters, and trans- 

 fer them to a pail filled with water. Fill the pails not more than half, or 

 at the most two-thirds full of eggs, and dip or pour oft" the water and 

 refill with fresh as often as once in half an hour, until the eggs are trans- 

 ferred to the shipping crates or floating boxes, or are delivered at the 

 hatchery. 



Eggs must remain in i^ails or vessels, with frequent changes of water, 

 at least four hours before being placed in the shipping crates ; but where 

 floating boxes are provided, they may be transferred thereto at once, on 

 arrival at shore. 



When ready to fill the crates, wet the flannel trays thoroughly in 

 cold water ; dip up the eggs with a perforated dipper, allowing them 

 to drain, and with a feather sj^read them uniformly on the trays, three 

 or four layers deep ; then drain still further by tilting the tray and in- 

 serting a knife blade between the flannel and franie to allow the drain- 

 age to escape. It is important that the eggs should be moist, but not 

 dripiniKj. 



Place the filled crates in a cool place, out of the sun. The tempera- 

 ture should not be above 50^, nor must the eggs be allowed to freeze. 

 In all cases forward to the hatchery as soon as possible. Make every 

 eftbrt to handle every spawning fish ; and once obtained, the eggs must 

 not be lost through carelessness or negligence. Employes remain at 

 their stations until ordered elsewhere or to discontinue, and accomi)any 

 the boat to which they are assigned on every trip to the nets. 



Alpena, Mich,, November 1, 1883. 



51.-EXCHAIV«E OF I^AIVD-XiOCKED SAI>MOIV EGGS FROi^ ITIAIIVE 

 FOK L.O<JlI ]LEVEI\ TROBJT OVA FROM SCOTEAIVI>. 



By Sir JAMES G. MAITJLAND. 



[From a letter to Prof. S. F. Baird.] 



I am happy to say the 5,000 land-locked salmon ova you so kindly for- 

 warded me through Mr. F. Mather arrived in first-class condition on the 

 morning of March 19. The eggs are not quite so large as salmon ova 

 from this (the Forth) district, but are larger than those of salmon from 

 the Tweed this spring. The effect of the epidemic with which that river 

 has for the last several years been affected having been (by killing out 

 the old fish) materially to reduce the size of the ova. 



I would like to send you some of our Scotch Loch Leven trout ova 

 which I have successfully introduced into New Zealand. If you will 

 kindly let me know how the cases should be addressed, I will forward 

 them from here the week beginning Monday, November 24. Our best 

 ova in this country always hatches out in December, while the ova from 

 younger fish is frequently not spawned till February. 



STiRLiNa, Scotland, March 21, 1881. 



