INDEX TO NIAGARA FALLS AND VICINITY 



281 



Minerals in ^eodiferous limestone, 



Io8"-9^ 

 Modiolopsis, 209"- lO". 



sp., 209''- 1 o\ 



orthonota, 209^ 



primigenia, 20/. 



subalatus, 209'''- io\ 



cf. subalatus?, 102' 

 Morgan, R. F., assistance from, i8^ 

 Muddy creek, shell-bearing gravels, 



Mudge, E. H., cited, 2571 

 Mussels, fresh water, 10'. 



Nautiloidea, 215^-18'. 



Nematophycus, 132". 

 crassus, 132", 



Nematophyton crassum, 132". 



New York side, views from, g'^-12'. 



Newberry, J. S., cited, 257^, 46'', 50^; 

 mentioned, 18". 



Niagara, first use of name, y^\ mean- 

 ing of name, 7*. 



Niagara and Great lakes, bibli- 

 ography, 253-62. 



Niagara beds, ,^4^; of Lake Temis- 

 caming, 36\ See also Lockport 

 limestone; Rochester shales. 



Niagara cuesta, sec Cuesta. 



Niagara escarpment, 39^; illus. fac- 

 ing p. 25. 



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

 gorge, 68"; abandoned falls at 

 Fosters fiats, 71^-76'; i lus. facing 

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

 Hennepin's view point, frontis- 

 piece; hight, 22*; how reached, f ; 

 how to see them, 7^-17'"'; illus. fac- 

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

 55^-85": origin, 66^; possible exist- 

 ence of three or four falls, 75^-76^; 

 upper gorge and falls, 80^-82*. 



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

 ing p. 72. 



Niagara gorge, sec Gorge of 

 Niagara. 



Niagara group, term, 6". 



Niagara limestone, see Lockport 

 limestone. 



Niagara region, history of during 

 Siluric time, I2I'^-29^ 



Niagara river, accumulations of 

 stratified sands and gravels, 67^; 

 age, 82'-85''; ero.ion of river bed, 

 68'; future of, 65'; 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, 102''. 



Niagaran deposits, of New York 

 compared with those of the Middle 

 states, I26'■'-27^ 



Nicholson, H. A., cited, 2Sf. 



Nipissing, lake, 62", yy"^. 



Nipissing great lakes, 62^; map, 63. 



Nipissing-Mattawa river, 62^, yf. 



Obsequent streams, 41', 47', 51'. 



Onchus deweyi, 227'*-28^ 



Oneida conglomerates, 'i;^^. 



Ongiara park, i6^ 75'\ 



Onondaga limestone, 29^ ^^' , 117"; 

 and Manlius limestone, uncon- 

 formable contact, 118'. 



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

 61*; topography and geology, 47"- 



Ontario valley, 47'''-5i*. 

 Orbicula? squamiformis, I79^ 

 Orthis, i85*-86^ 



circulus, 188^-89". 



elegantula, 187". 



fasciata, i87\ 



fiabellites, 186", 



flabellulum, 186". 



hybrida, i88\ 



(?) punctostriata, I86^ 



pyramidale, 189". 

 Orthoceras, 2i5^-i6l 



sp., I02l 



annulatum, I02\ 2i5^-i6\ 



medullare (?), 102^, 2i6\ 



multiseptum, 215". 



undu'atum, 2i5*-i6\ 

 Orthostrophia, i86''-87". 



(?) fasciata, 187^ 

 Orthothetes, i83'-85'. 



hydraulicus, i84*-85"'. , 



subplanus, loi^ I03^ 184^ 



