INDEX. 
209 
Pago. 
Leptocoelia 90,91 
Leptostrophia 42 
Lichas.. 32,33,53,56 
Limestones, occurrence and character 
of. 139-143 
plates showing 140,142 
Lingula 28, 34, a5, 36, 37, 40, 41, 42, 86, 91 
Lissopleura 89,90 
Little Brassua Lake, fossils from 91 
Littlefield's farm, Chapman, fossils 
from 54 
Lituites 41 
Localities examined, list of 189-203 
Logan, William, quoted on Paleozoic 
rocks of Canada 22,23,24 
quoted on Silurian and Devonian 
rocks of Canada 22,23,24 
Long Pond, fossils from 90 
Lower Helderberg, Canadian equiva- 
lents of 26,26-27,27 
Loxonema 32,34,36,79,86,89,90,91 
Lubec lead mines, Maine, fossils from.. 28 
Ludlow, aplite at 149 
granite quarry at. 107 
granite- porphyry near 150 
localities examined near 196 
metamorphism near 152 
petrography of granite from quarry 
at 148-149 
Ludlow Station, localities examined 
near 194 
Ly riocrinus . 
55 
M. 
McDonalds Hill, localities examined at. 200 
Machiasport, Silurian fossils from 28 
Madawaska Lake, localities examined 
atandnear 199,200 
plate showing sandstone from 134 
volcanic conglomerates at 128, 131 
Madawaska River, localities examined 
on 195 
volcanic conglomerates on branches 
of 127-128 
Magruder, E. W., and Jones, W. A., 
analyses by.. 155-156,171-172 
Mahan, R. W., analysis by 155 
Manganiferous iron slates, occurrence 
and character of 145 
plate showing 144 
Map, Aroostook volcanic area 105 
showing areas examined 12 
Mapleton, localities examined at and 
near. 196,197,200 
Mapleton conglomerate, plate showing. 144 
Mapleton granite, occurrence and char- 
acter of 105-106 
petrography of 146-148 
Mapleton sandstone, age of 21,22,88 
fossils of 88 
occurrence and character of 136-137 
Mapleton Township, andesites in 113 
geologic map of part of 116 
metamorphism in 151-152 
granite in 105-106 
sandstone in 136-137 
Bull. 165 14 
Tage. 
Mapleton Village, andesites at 173 
Maple ton-Prosque Isle road, section on. 113 
Mars Hill, conglomerate at 134-136 
diabase at 115-116,177-179 
fossils from 48-49,79-80 
localities examined at and near. 193-194,203 
section at 135 
Masardis, fossils from '. 33 
localities examined at and near 201,202 
sandstones at 138 
Meek and Worthen, fossils identified by 43 
Megalanteris 90 
Megambonia 34,37,42 
Megaphyton 31 
Meduxnekeag River, localities exam- 
ined on 203 
Merista 43 
Meristella 313,42,53,55,56 
Meristina 36 
Metamorphism caused by granite in- 
trusions 151-152 
Microcline and orthoclase intergrowth, 
figures showing 149,150 
Missouri, fossils from 43 
Modiolopsis 28,29,30,34,35,40,41 
Modiomorpha 35,40,90,91 
Monograptus 35,46 
Monograptus priodon 46 
Monticello, localities examined near . . . 194 
Monticello Station, localities examined 
near 194 
Monticulipora 36,43 
Moose Island, fossils from 35 
Moose River sandstone, age of 21, 22 
features and fossils of 88-92 
Moosehead Lake, fossil from 29, 30 
Munson's granite, occurrence and char- 
acter of 105-106 
Murchisonia 29, 30, 35, 36, 40, 41, 56, 86 
Murchison, Roderick, cited on naming 
of the Silurian system 82 
cited on taxonomic value of Bey- 
richia pustulosa 85-86 
cited on upper limit of Silurian 
rocks 83 
Myrianites 28 
Mytilarca 40,53 
N. 
Natica 86 
Nereograspus 28 
New Brunswick, fossils from 37 
localities examined in 203 
New Limerick, diabase near 115 
New Sweden, calciferous quartzitic 
sandstones at 138-139 
localities examined near 198, 199 
manganiferous iron slatesat 145 
rocks and fossils at 51 
New Sweden Township, fossils from... 48 
volcanic conglomerates in . . 127-128, 129-130 
New York, fossils from 42-43 
Nickerson Lake, localities examined at. 194 
Nictaux iron ores, age of fossils of 87 
North Haven series, Penobscot Bay, 
fossils of 35 
Nucleospira 36,53,54,55 
