PHYSICAL 1 



o 



LOCALITY 



SB 



tio 



a 



'Si 



c 



Brick mixture, Maynard & Pow- 

 ers, Richmond 



Fort Lee 



Two miles south of Chester 



One mile northwest of Bermuda 



Hundred 



Keeler's yard, Broadway, on Ap- 

 pomattox River 



Sturgeon Point 



Oldfield 



Oldfield 



) Ball property six miles south- I 

 [ east of Richmond 1 



\ Impure diatomaceous earth i 

 j Richmond \ 



I W. J. Ready's yard, Manches- 

 1 ter, by Richmond 



Williamsburg road, near Stagg's 



Mill, Richmond 



Turner's yard, near Petersburg. _ 



Wood's yard, near Emporia 



J Clays showing variable char- 

 > acter of upper bed at Stur- 



) geon Point 



Clay from river level. Sturgeon 



Point 



City Point 



Standard Brick Co., south of Suf- 

 folk 



Blue clay, Suffolk Clay Co., Suf- 

 folk 



Brick mixture. Suffolk Clay Co., 



Suffolk 



f Eocene clays from between ) 



i icksburg 



Between Milford and Bowling 



Green 



One mile south of Layton 



Red clay, northwest of Freder- 

 icksburg 



Diatomaceous earth, one mile 



south of Layton 



Pleistocene clay, Wilmont 



Diatom earth, Wilmont 



Clay from "House" bank south 



east of Wilmont 



Sandy clay. Occupacia P. O 



29.7 



Mody 

 Mody 



Fast 



Fast 



fast 

 fast 



6 Slow 

 1 Mody 

 3 Slow 



Mody 

 Mody 

 Mody 

 Mody. 

 Fast 

 Past 

 Mody 

 3 Mody 

 7 Fast 



fast 



fast 

 fast 



filSt 



fast 



27.8 Slow 



23, 



24 



24 



18, 



Stafford C. H. and Freder- Y 



30.: 

 20.; 



22. 



31.! 



26.4 



33.0 



Slow 



Slow 



Mody, 



Fast 



Fast 



Mody. 

 Slow 



Slow 



Slow 



Slow 



Mody, 

 Mody, 



Mody, 



Slow 



Fast 



Fast 



Modv, 



Fast 



Mody. 

 Fast 



fast 

 fast 



fast 



fast 



fast 

 fast 



fast 



fa,st 

 fast 



Good 

 Good 

 Low 



Good 



Good 



Good 



Good 



Good 



Good 



Good 



Excellent, 



Lean 



Lean 



Good 



Good 



Fair 



High 



Excellent 



Good 



Fair 



Pair 



Low 



Pair 

 Excellent 



Excellent 



Excellent 



Good 



Crumbly 

 Good 



Good 

 Low 



Good 



Low 



Good 



Low 



Good 

 Fair 



Fine 



Little 



Some 



Very fine 



Very little 



Fine 



Much 



Little 



Little 



Little 



Little 



Some 



Some 



Sandy 



Much 



Sandy 



Some 



Little 



Little 



Sandy 



Much 



Sandy 



Little 

 Much 



Much 



Little 



Little 



Little 

 Little 



Little 

 Much 



Little 



Little 

 Some 

 Some 



Much 

 Sandy 



*FeO, 1 per cent, 



s.s. Slightly swelled. 



Tlie cheuiical analyses in this table were made )jy Messrs. J. R. Eoff, Jr., and J. H. Gibboney. 



