MANSFIELD: ROXBURY CONGLOMERATE. 93 
PAG PAGE 
Conglomerate u srl. 32173 Cross-bedding. i 24) > 0,189 
Sandstone and Grit re tig 173 Ripple-marks tete) 
Slate a alza Local Unconformities . . 189 
Associated Mel: aston road Relations to Subjacent Rocks 190 
Texture of the Conglomerate 174 Summary ofthe SEEN 
Bedding andre Suse cal, 0 Basin Series... . 190 
Bandai arena lo. The Harvard Conglomendtas a TOL 
Lenses u. so a a N, Distribution ...... USE 
Cross bedding u ciney Texture of the Conglosianae 191 
Ripple-marks . aro Bedding er... w igi 
Local Une On aties el) Relations to Sub iden Boake 191 
Relations to Subjacent Rocks 180 General Summary .... . . 191 
Summary of the Roxbury E \ 
Bares 189 STRUCTURE OF THE CONGLOMERATES. 
The Norfolk Basin Santee. 205183. Ihe Boston Basin) sh ae age 192 
Distribution neh, Literature. oan 192 
AIKOR un. LSO Early Views of Grodby: as lOs 
Conglomerate at SO Later Views os 104 
Sandstone...) wenta LSO General Structure . ....... , 194 
Bato do So The Northern Boundary . 194 
Limestone BL 183 The Somerville-Cambridge 
Associated Igneous inka 183 Slate sa... 3195 
Texture of the Conglomerate 184 The Brighton- Newton Ards 199 
Bedane c reani „are The Savin Hill-Brookline 
Bands oa 0. a ISO Conglomerate . . 200 
Lenso. se ya. SD The Dorchester- Roslindale 
Gross-bedamo a LSO Slate . . 201 
Ripple-marks and Mud- The Hyde Parke Mattapan 
cracks 5 yh SO Squantum area... 202 
Local Unono oiie oreo OG The Neponset - Houl s 
Relations to Subjacent Rocks 186 Neck Region. . . 2502083 
Summary of the Norfolk The Southern Boundkry . 205 
Basin Series . . 186 Outlying Areas... 206 
The Narragansett Basin ‚Series 187 Wellesley - South Natick 206 
Distnbunion aaa ..18 kanonami =. 3... ve eee OT, 
AIKOO ar ia ee LS Nantasket o. 20s 
Couglomerite =... . 187 - TheHarbor Islands . . 209 
Sandro. 4 ee s IST LGKMOSS) .. | © 20209 
UME SS Summary of Suot o AO 
Limestone R 188 Relations to: the Melaphyrs 211 
Associated Igneous ROE ks 188 Summary of Relations to 
Texture of the Conglomerate , 188 the Melaphyis y ©. 02) 23207, 
BEAT, ai ld Metamorphism a cet 
Bands a er a pes 1895 he Nopiolk Basile. 2 LO 
Lorat corras Sm sa SO Literature, nn ld 
