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to give you some particulars respecting Lund's hatch- 

 ing-box for the propagation of summer-spawning fish, 

 I herewith hasten to give you all the information I can. 

 Lund's apparatus is remarkable on account of its being, for 

 aught I know, the first attempt in Europe to promote the 

 propagation of the above-mentioned fish with human as- 

 sistance. As you rightly suppose, the box is to be placed 

 in shallow water near the bank, so that the water does not 

 flow over it. Lund has not given any dimensions for his 

 box, which may be of any size. The sides are hinged, so 

 that they can be let down, and they are perforated with 

 numerous small holes, so that the water can circulate 

 through. The inside should be charred by fire to preserve 

 it. The bottom of the box and the sides are lined with fir 

 branches. As you will see from the sketch I send you, 

 the box should rest on blocks, so as to be raised a little 

 from the bed of the water. With some modifications for 

 instance it is not necessary to have the sides hinged 

 Lund's box has been adopted here in Sweden with success, 

 and, in my opinion, for the hatching of perch, it is the most 

 practical that has yet been invented. In a box of this 

 kind, 6 feet square, and with sides 2 feet high, we place 

 fifty female and from twenty to thirty male fish. These 

 fish must be placed in the hatching-box as near their 

 spawning time as possible, and are taken out again as soon 

 as the spawning is finished. The fish deposit the spawn on 

 the branches. It is of great importance that the sides 

 are well perforated, to ensure free circulation of the water. 

 We use these boxes chiefly for perch, but they can also be 

 used, with some modifications, for other fish." 



You will see, gentlemen, that it is an easy matter to 

 transport spawn which has been obtained in this way to 

 almost any distance, as it adheres to the boughs ; so that 



