13S H. E. Gregory — Geologic Reconnaissance of the 



4. Sand, fine, even-bedded, thin-bedded, with four strata 



of pink clay (aggregating 3') composed of layers 

 about one-fiftieth of an inch thick 13 



5. Sand and clay like No. 4 in alternating beds. Includes 



a lens 1" thick, 50' long, of black iron-cemented sand, 10 



6. Clay, brown, thin, even-bedded, and fine sand. Few 



bone fragments. Total clay about 60 feet ; sand 

 35 feet 95 



7. Coarse sand, firmly cemented, forms bench 0*3 



8. Sand, fine, thin-bedded 10 



9. Sand, fine, containing three lenses and one 3" bed of 



sand and clay firmly cemented by lime and contain- 

 ing abundant bone fragments 6 



10. Sands, fine, thin-bedded, with small amount of clay.. 15 



183-3 

 Section II East branch Calvo brook. 



100 feet from junction. 



Feet 



1. Soil, — brown, mixture of gravel and sand 15 



2. Sand and fine gravel, containing numerous carbonized 



fragments of plants 3 



3. Peat, brown, porous, mixed with mud; plants too frag- 



mentary for determination 0'25 



Unconformity. 



4. Gravel, composed of angular pebbles one-half inch to 



four inches in diameter 1-5 



Unconformity. 



5. Sand, with small amount of thin-bedded clay, yellow, 



traversed by carbonized roots and root-tubes; prob- 

 ably an old soil .. 3 



6. Clay, light brown; and sand, fine, clear, in alternate, 



very thin strata. Clay and sand about equal in 

 amount 30 



52-75 

 Section III. West branch of East branch of Calvo brook. 



Dip N/ 2°. 



Feet 



1. Gravel, and sand; surface wash 5 



2. Gravel and fine sand, grey; loosely cemented by iron. 2 

 Unconformity. 



3. Clay, very thin, even layers, forming strata three inches 



to one foot thick, which alternate with strata of fine 

 sand. A few decomposed bones 10 



4. Volcanic ash, white, microscopically fine-grained, thin- 



bedded, porous. Locally called " chalk" 1'5 



5. Clay and sand, very thin layers grouped in alternate 



strata 8 



26*5 



