Kay-au=do=ros=sa (modern), Kancader-osseras, Kanicaderoseras (primary), the name given as that of a stream of water, of a district of country, and of a range of mountains, was originally the name of the stream now known as Fish Greek,^ the outlet of Saratoga Lake, and signifies, literally, "Where the lake mouths itself out." Horatio Hale wrote me: ''Lake, in Iroquois, is, in th€ French missionary spelling, Kaniatare, the word being sounded as in Italian. Month is Osa, whence (writes the Rev. J. A. Cuoq in his Lexique de la langue Iroquois), Osara, mouth of a river, 'boudhe d'un fleure, embouchure d'une riviere.' This word combined would give either Kanicatarosa or Kaniatarossa, with the meaning of 'Lal<e mouth,' applicable to the mouth of a lake, or rather, according to the verbalizing habit of the language, 'the place where the lake disembogues,' literally, ''mouths itself out.' " To wihich J. B. N. Hewitt added the explanation, "Or flood-lands of the lake -- ^the overflow of the lake." Adirondacks, or Ratirontaks, a name now improperly applied to the mountainous district of northern New York, is said to have been primarily bestowed by the Iroquois on a tribe occupying the left bank of the St. Lawrence above the present site of Quebec, who were called by the French Algonquins specifically, as representatives of a title which had come to be of general application to a group of tribes speaking radically the same language.^ The term is under- ^ "About Kayaderossres Creek and the lakes in that quarter." "The chief tract nf hunting land we have left, called Kayaderossres, with a great quantity of land about it." (Doc. Hist. N. Y., ii, no.) The stream drains an extensive district of country, flows into and becomes the outlet of Saratoga Lake, and is now known as Fish Creek and Fish Kill, a very cheap substitute for the expressive Mohawk term.