114 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



[1792?] Spall ANZANi, Lazzaro. Opusculi due sopre le anguiUe, dove 

 singolarmeiite si ragioua di quelle cbe se pescauo uelle valle di 

 Comaccbio. <Opere [ed. Milano, 1826], iii, p. 518. Apendice 

 ai Viaggi alle due Sicilie, vi, [1752.] 



[Au attempt to overtlirow the claim of Mondini.] 



1803. Amoeetti, Carlo. Osservazioni sulle Auguille. <Mem. Soc. 

 Italiaua, x, 1803, pp. G79-680. 



1807. MiTCHiLL, Samuel L. Facts coucerniug the Generation of Eels. 

 <N. Y. Medical Kepository, iv, 2d liexade, 1807, pp. 201-203. 



[Records tlie independeut discovery of eel ovaries in eels from Long 

 Island. ] 



1809. Care, John. On the Generation and other obscure facts in the 

 Natural History of the Common Eel. < Philosophical Maga- 

 zine, xxxiv, 1809, pp. 272-277. 



1815. Clinton, De Witt. An Introductory Discourse [before the 

 Literary and Philosophical Society of Kew York], delivered 

 on the 4th of May, 1811. < Trans. Literary and Philosophical 

 Society of Xew York, ii, 1815, pp. 17-184. 



[In note AA., pp. 146-148, Clinton exjjresses tlie following opinion: "The 

 eels migrate every autumn to the sea for the purpose of propagation, and the 

 young ones return up the streams iu spring and summer in immense num- 

 bers. Some stay in fresh water all the year, but they do not breed; and it 

 seems to be a fact well established that they do never breed in fresh water, 

 the periodical descent of the old ones to the ocean and the ascent of the 

 young ones fi-om thence prove that the scene of their propagation is in the 

 sea itself."] 



1815. MiTCHiLL, Samuel L. The Fishes of New York described and 

 arranged. < Trans. Literary and Philosophical Society of New 

 York, i, 1815, pp. 355-492, 6 plates. 



[Discussing the eel, p. 360, Mitchill remarks: "The roes or ovaries of eels 

 may be seen, by those who will look for them in the proper season, like 

 those of other fish. By inattentive observers they may be mistaken for 

 masses of fat."] 



1822. Carlisle, Arthur. On the Breeding of Eels. < Philosophical 



Magazine, lix, 1822, pp. 109-110. 

 1824. Eathke, Martin Heinrich. Ueber den Darmkanal und die 



Erzeugungsorgane der Fische. <Neueste Schriften der Natur- 



forschenden Gesellschaft zu Danzig, i, part iii, Halle, 1824, p. 



(1221); Wiegmann's Archiv, i, 1838, p. 299. 



1828. Mondini, Carlo. On the Generation and Migration of Eels. 



< Edinburgh Journal of Science, ix, 1828, pp. 328-330. 



[Not seen. Title from Cams aud Engclmauu.] 



1829. Davy, Sir Humphrey. Salmonia, or Days of Fly Fishing, &c. 



Loudon, 1829. 



[Refers to the "eel-fairs" of England, describing the ascent of the young 

 brood into Loch Erue.] 



