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the statement of Count Ninni, who in 1881 writes that in tlie 

 northern lagoons alone (between Porto Fossone, Adige, and the 

 mouth of the Isonzo) 600 boats and 25,000 fishermen are em- 

 ployed in this industry; and he adds that these data are rather 

 below the true number for both. Quite a series of boats, nets 

 implements of various kinds are used in Vallicoltura, and the 

 men therein employed have each their special task, — 2. Fish- 

 culture in Freshwaters. I include under this term the arti- 

 ficial propagation and introduction of important food-fishes; in 

 this line little indeed has as yet been done in Italy. The first 

 attempts were made in 1859, in the small lakes of Trana and 

 Avigliana in Piedmont, by Professor F. de Filippi and Sir 

 James Hudson, then British ambassador at Turin: eggs of iake- 

 trout, Salvelin, and Salmon from Huningen were introduced, and 

 the following year to these were added those of Corcgonus from 

 Lakes Bourget and of Genova; unfortunately, on account of the 

 absence of Prof, de Filippi, first in Persia, and then in a voyage 

 round the world, during which he died, the work was discon- 

 tinued before any results could be obtained. In 1861, de Filippi 

 went to Lake Constance, on purpose to fecundate eggs of Corc- 

 gonus lavaretus ; 600,000 of these were thrown into Lake Como 

 at Colico, and about a million in Lake Maggiore, some being 

 incubated at Avigliana, others at Baveno, with Coste's system. 

 Again, in 1862, Government acquired 70,000 fecundated eggs of 

 the Salvelin from Kuffer (Saltzburg); 25,000 were kept at Avi- 

 gliana,, 40,000 deposited at Baveno to be placed in Lake Mer- 

 gozzo, and 5C00 destined for Lake Montorfano (Como). As I said 

 above, these operations so well begun were unfortunately not 

 continued. However in April, 1881, a Corcgonus of large size 

 was caught in Lake Maggiore, evidently one of those introduced 

 from Lake Constance. In 1861, at Venaria Reale, H.M. King 

 Victor Emanuel, initiated a small fish-cultural establishment, 

 now obsolete. In 1864-65, Dr. P. Carganico made a similar 

 attempt for trout at Como. In 1871 Dr. Revelli founded a pisci- 

 cultural establishment for trout and salmon at Savigliano; this 

 succeeded in part, but eventualy failed simply for want of pecu- 

 niary support in 1879. An attempt of a similar nature, on a 

 larger scale, was made at Isola della Gaiola near Naples, by a 



