EXPORTATION OF FISHES AND HATCHING APPARATUS. 10U5 



Green has invented a carrying-package, which has now been in use for 

 two years, and which is a very great improvement upon the old method." 



My respectful request would be that you would send me, with some 

 objects mentioned below, such a packing arrangement, together with 

 special instructions for its use. 



It is further said in the same report, page 34, the hatching-boxes 

 which were substituted in place of the old-fashioned troughs add im- 

 mensely " to the capacity" of the establishment, &c. 



I should be greatly pleased if you would send me such hatching-boxes, 

 one of each approved sort; especially I beg for a Holton hatching- 

 trough, which is so highly approved for your whitefish, and which we 

 would like to use for our species of Coregonus ; for instance, the Maranen. 

 AYe have, indeed, a description of it ; but a specimen sent to me through 

 your kindness would be very desirable for me. Likewise, I must repeat, 

 a specimen of other approved hatching-troughs, such as are specified on 

 page 34 of the above-named report. Opposite page 4 of the same re- 

 port is a very lively picture of the shores of the Hudson River. 



Since I naturally cannot obtain one from the men represented there, 

 I content myself with the request that you will send me one of the 

 transportation-cans. How many young shad will such a can hold, and 

 what method does the person iu charge prefer to keep the fish alive — by 

 means of ice or by bladder-skins — or by frequent changing of the water? 



You see that I do not despair drawing the shad hither, but not the 

 American — our Chipea alosa. I have the great authority of Mr. Bancroft 

 Davis for saying that our Chipea is almost as good as your shad. It can- 

 not be quite so good, for it feeds in the North Sea upon the remains only 

 of the treasures of the Gulf Stream, upon whose richest provisions, on 

 the other side, your shad fatten themselves. 



I adhere, therefore, first of all, to the propagation of our own shad, 

 and beg for such transportation-cans. The necessary wire chests I have 

 had made here. 



In the foregoing I have given you already much more trouble than is 

 allowable, but the attempt is so great, that I must crave permission for 

 one more counsel. 



We have, in the Lake of Constance, which we call our South German 

 Sea, the Coregonus /era, a fine fish, which is spawning now, and has an 

 incredible quantity of eggs. These eggs are, however, so small that they 

 are the despair of our fish-culturists. Indeed, the hope of propagating 

 them artificially has been quite abandoned in the hatching-houses. 



We build now in the Lake of Constance a great chest of tcood, place 

 in it many /eras ready to spawn, allow them to spawn in it ; and we 

 have the hope that the lake water, which streams in through the small 

 holes of the chest without the possibility of fish of prey entering, will 

 hatch out the eggs in it. Have you experience in this ? Would Holton's 

 trough be good ? 



But I must now control myself and conclude, only pointing out that 



