NEW YORK STATE MUSEUM 



East Bethany, 16 



East Elma, 24, 26 



East Lancaster, 16 



East Victor, 9 



Eighteen Mile creek, 16, 19 



Ellicott creek, 6, 8, 12, 13, 17, 19, 20, 



21, 22, 24 

 Elma, 17 



Encrinal limestone, 18 

 Euomphalus (Phanerotinus) laxus, 15 

 Euthydesma subtextile, 28 

 Evans, 24, 26 



Fallkirk, 9 

 Favosites sp., 9 

 hamiltoniae, 18 

 Flint creek, 13 

 Folsomdale, 26 



Gardeau flags and shales, 6, 26, 27- 

 28; exposures, 28 



Genesee black shale, 6, 21-22; ex- 

 posures, 22 



Genesee county, gypsum beds, 7 



Genesee river, 29 



Genesee River gorge, 19, 25, 26, 28 



Genesee River valley, Wiscoy shales, 

 29 



Genesee slate, 21 



Genundewa limestone, 6, 22-23 



Genundewa point, 22 



Gephyroceras, sp., 23 

 genundewa. 23 



Grabau, A. W., cited 16, 18, 19, 30 



Grimes sandstones, 27 



Griswold, 20, 21, 22, 24, 25 



Gyroceras trivolve, 1 1 

 undulatum, n 



Hall, James, cited, 18, 25, 26, 30 



Hamilton beds, 6, 15-30 



Hatch shales and flags, 6, 26-27; 



exposures, 27 

 Honeoye Falls. 10 

 Honeoyea desmata, 28 



erinacea, 28 



major, 25, 28 



styliophila, 23 

 Hunters creek, 27 



Hydnoceras nodosum, 28 

 Hyolithes neapolis, 29 



Indian Falls, 7, 9 

 Isochilina? fabacea, 12 



Jewettville, 26, 27 

 Keuka Lake valley, 26 



Lake Como dam, 13 

 Lancaster, 6, 12, 13, 14 

 Leperditia scalaris?, 7, 8 

 Leptaena rhomboidalis, n 

 Leptostrophia perplana, 17, 20 

 LeRoy, 14 

 Lingula ligea, 24, 25, 29 



spatulata, 23 

 Liorhynchus limitare, 12, 13, 14, 15 



multicostum, 17 



Little Buffalo creek, 14, 16, 20, 21, 24 

 Livingston county, Cashaqua shale, 25 



Gardeau flags and shales, 27 



Genesee black shale, 21 



Genundewa limestone, 22 



pyrite, 20 



Long Beards riffs. 29 

 Loomis, F. B., cited, 20 

 Loxonema?, 9 



multiplicatum, 28 



noe, 23 



Ludlowville shale, 6, 16-17, 19; ex- 

 posures, 17 



Lunulicardium (Pinnopsis) acutiros- 

 trum, 25 



bickense, 28 



curtum, 23 



ornatum, 25 



wiscoyense, 29 

 Luther, D. D., cited 30 



Manlius limestone, 9 



Manticoceras oxy, 27, 28. 29 

 pattersoni, 23, 25, 27, 28 

 rhynchostoma, 27, 28, 29 

 sororium, 27 



Marcellus, upper shales of, 14 



Marcellus black shale, 6, 12-13; ex- 

 posures, 13 



