_r_ taking the place of the Eastern _l_ and _n._ In the Minsi (Del.) Zeisberger wrote _l_ invariably, as distinguished from _r,_ which appears in the earliest local names in the valley of the Hudson. Other dialectic peculiarities seem to appear in the exchange of the sonant _g_ for the hard sound of the surd mute _k,_ and of _p_ for _g,_ _s_ for _g,_ and _t_ for _d,_ _st_ for _gk,_ etc. Initials are badly mixed, presumably due in part at least, to the habit of Indian speakers in throwing the sound of the word forward to the penult; in some cases to the lack of an "Indian ear" on the part of the hearer. In structure all Algonquian dialects are Polysynthetic, _i. e.,_ words composed wholly or in part of other words or generic roots. Pronunciations and inflections differ as do the words in meaning in many cases. In all dialects the most simple combinations appear in geographical names, which the late Dr. J. H. Trumbull resolved into three classes, viz.: "I. Those formed by the union of two elements, which we will call _adjectival_ and _substantival,_ or ground-word, with or without a locative suffix, or post-position word meaning 'at,' 'in,' 'on,' 'near,' etc. [I use the terms 'adjectival' and 'substantival,' because no true adjectives or substantives enter into the composition of Algonquian names. The adjectival may be an adverb or a preposition; the substantival element is often a verbal, which serves in composition as a generic name, but which cannot be used as an independent word--the synthesis always retains the verbal form.] II. Those which have a single element, the _substantival,_ or ground-word, with locative suffix. III. Those formed from verbs as participials or verbal nouns, denoting a place where the action of the verb is performed. Most of these latter, however," he adds, "may be shown by strict analysis to belong to one of the two preceding classes, which comprise at least nine-tenths of all Algonquian local names which have been preserved." For example, in Class I, _Wapan-aki_ is a combination of _Wapan,_ "the Orient," "the East," and _aki,_ "Land, place or country," _unlimited;_ with locative suffix (_-ng,_ Del., _-it,_ Mass.), "In the East Land or Country." _Kit-ann-ing,_ Del., is a composition from _Kitschi,_ "Chief, principal, greatest," _hanné,_ "river," and _ing_ locative, and reads, "A place at or on the largest river." The suffix _-aki, -acki, -hacki,_ Del., meaning "Land, place, or country, _unlimited,_" in Eastern orthographies _-ohke, -auke, -ague, -ke, -ki,_ etc., is changed to _-kamik,_ or _-kamike,_ Del., _-kamuk_ or _-komuk,_ Mass., in describing "Land or place _limited,_" or enclosed, a particular place, as a field, garden, and also used for house, thicket, etc. The Eastern post-position locatives are _-it, -et, -at, -ut;_ the Delaware, _-ng, -nk,_ with connecting vowel _-ing, -ink, -ong, -onk, -ung, -unk,_ etc. The meaning of this class of suffixes is