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WW dg WAN d *y iligniaenn vy 5 tel Wd tS wre gad fie ARE hod : Bves: ee J engi & ERP, om wf: ne ptt | AA Ah we Vee Jw! et ae MO ll a we “Le | Ma viv ine Ae Mg bd rin yedty sf ‘ n Jat kw ("ve / bee bw wv ~ Ae rf? og! Pon 4 i? buy wd" is ee he i" tM WN Net Naat wf aI res . bet . dae J \ ; bd wy Aa lah ngedtt ing shi, PMT TER li pea se Nyt ee Vv or id wedi vy "a vvvey y eT tv dt JkM SA rudd ts a VW vegteyryy vv thy Weare wey Yair cneeloe WA ws MAN Maen tual Mes vice w “YY "Wve : NewYork State Museum Bulletin’ } Entered as second-class matter November 27, 1915, at the Post Office at Albany, N. Y., under the act of August 24,1912 _ Published monthly by The University of the State of New York No. 185 ALBANY, Nz Y¥: May I, 1916 The U iiversity of the State of New York _ New York State Museum : : Joun M. CrLarkeE, Director —<, THE PRECAMBRIAN ROCKS OF THE CANTON = QUADRANGLE Bey BY _JAMES C. MARTIN PAGE PAGE Tnbeedastion. eet er i, 7 Gabbro-amphibolite; Pierrepont General en 2 Naar 1 OCOHEPETER ES Nia. i ey SR ee 4 Gragwite series. 2. i “17. |. Gabbro-amphibolite; Pyrites Cresville limestone../.7.:..:. 17 CR RTCTIC Ss ee ok au 61 Gamer CWeIsS i ol ess os So. es 24 (Spamibeyemciss oe Sl. Skee eras 65 Siliceous paragneisses. . 40 Peomantre. Ciees uf te ee 78 Pyritous gneiss...... 42 Amphibolite inclusions........ 86 Quartzite and quartz- -schist. . 47 PAMPORUEG, 525 SF meat e 93 PURE EON ree or ce i 50 | List of pelereites BR OE ag eG 109 Post-Grenville rockS.2 2.0.00 6. ey Index Ecce cages cA nas PN ee III ALBANY . THE UNIVERSITY OF THE STATE OF NEW YORK T9t6 M7or-D15-1500 oc Cees cod ee