INDEX TO NIAGARA FALLS AND VICINITY 



28l 



Minerals in geodiferous limestone, 



io8°-cr. 

 Modiolopsis, 2og'-io~. 



sp., 209°-io l . 



orthonota, 209 3 . 



prlmigenia, 2of. 



subalatus, 209°-io 1 . 



cf. subalatus?, 102 4 

 Morgan, R. F., assistance from, 18°. 

 Muddy creek, shell-bearing gravels, 



238=.' 

 Mudge, E. H., cited, 257 s . 

 Mussels, fresh water. 10'. 



Nautiloidea, 2i5 3 -i8 2 . 



Nematophycus, 132°. 

 crassus, I32 r . 



Xematophyton crassum. 132'. 



New York side, views from, 9 c -i2 7 . 



Newberry, J. S., cited, 257 s , 46", 50 1 ; 

 mentioned, 18 7 . 



Niagara, first use of name, 7 3 ; mean- 

 ing of name, J i . 



Niagara and Great lakes, bibli- 

 ography, 253-62. 



Niagara beds, 34 1 ; of Lake Temis- 

 caming, 36*. See also Lockport 

 limestone; Rochester shales. 



Niagara cuesta, see Cuesta. 



Niagara escarpment. 39^; iilus. fac- 

 ing p. 25. 



Niagara falls, age, 82"-85°; cutting of 

 gorge, 68 T ; abandoned falls at 

 Fosters flats, 7i 7 -;6'; i lus. facing 

 p. 72; future of, 82 1 ; from Father 

 Hennepin's view point, frontis- 

 piece: hight, 22 s ; how reached, 7'; 

 how to see them, 7 1 -i7''; illus. fac- 

 ing p. 10, 38, 54, 80; life history, 

 55 1 -85°; origin, 66 1 ; possible exist- 

 ence of three or four falls, 75 s -76 3 ; 

 upper gorge and falls, 8o 3 -82'\ 



Niagara glen, 15". 7i ,; -76 4 ; illus. fac- 

 ing p. 72. 



Niagara gorge, see Gorge of 

 Niagara. 



Niagara group, term, 6' ; . 



Niagara limestone, see Lockport 

 limestone. 



Niagara region, history of during 

 Siluric time, i2l°-29 5 . 



Niagara river, accumulations of 

 stratified sands and gravels, 67 1 ; 

 age, 82^-85°; erodon of river bed, 

 68 T ; future of, 65 s ; old banks, 66*; 

 illus. facing p. 66; origin, 59'' ; water 

 supply diminished by Algonquin 

 river outlet, 62^-65". 



Niagara river gravels, Post-pliocene 

 fossils, 238-52. 



Niagara shale, see Rochester shale. 



Niagara transition group, i02 ,; . 



Niagaran deposits, of New York 

 compared with those of the Middle 

 states, i26"-27 3 . 



Nicholson, H. A., cited, 257 s . 



Nipi'ssing, lake, 62' , 77 s . 



Nipissing great lakes, 62 ; map, 63. 



Nipissing-Mattawa river, 62?, 77 s . 



Obsequent streams, 41", 47", 51 7 . 



Onchus deweyi, 227 5 -28'l 



Oneida conglomerates, 33*. 



Ongiara park, 16 1 , 75 s . 



Onondaga limestone, 29 s , 33^ 117"; 

 and Manlius limestone, uncon- 

 formable contact, 118'. 



Ontario, lake, depth, 47°, 49"; level, 

 61'; topography and geologv, 47°- 



si 1 - 



Ontario valley, <d7 G -5i*. 

 Orbicula? squamiformis, 179 8 . 

 Orthis, i85 s -86 7 . 



circulus, i88 7 -89". 



elegantula, 187°. 



fasciata, 187 1 . 



flabellites, 186 2 , 



flabellulum, 186". 



hybrida, i88 ! . 



(?) punctostriata, 186 5 . 



pyramidale, 189". 

 Orthoceras, 2i5 3 -i6 3 . 



sp., 102 3 . 



annulatum, T02 r; , 2i5 s -i6 1 . 



medullare (?), 102 3 , 216 1 . 



multiseptum, 215°. 



undu'atum, 2i.S 8 -i6 1 . 

 Orthostrophia, i86 s -87 2 . 



(?) fasciata, 187 1 . 

 Orthothetes, i83 7 -85 2 . 



hydraulicus, i84 8 -85 2 . , 



subplanus, 101 5 , 103 5 , 184 2 . 



