56 BULLETIN: MUSEUM OF COMPARATIVE ZOÖLOGY. 
are described? as “great masses of green and red argillaceous strata 
and apparently belonging to a lower division of the group.” 
Wall? gives under the name of the “Black Shale” the following 
section of the Richmond beds in St. George and Metcalfe. 
Feet. 
ted and light yellowish shale. . . . Wo. sae 
Thin alternations of grayish sandstone dd abate weathering 
Dwu | poe 000 
Brownish green | doin dinate TREE black olon containing 
alternations of thin sandstones, rubbly conglomerate, and pieces 
of Cretaceous limestone and fossil we and Caprinella much 
water worn . . ; ‘ iv. ¿1,000 
Purple shales änely limited passing into meissierplipeed 
conglomerate and shale (Minho beds). 
'This section makes no mention of the upper beds containing lime- 
stones, which, in our .opinion, represent a gradation into the overlying 
Cambridge formation. 
In the northern part of Hanover Parish the Richmond beds have 
considerable development, and, so far as composition is concerned, 
present the same general facies previously mentioned. Iu this parish 
they are exposed in the back coast bluffs from the mouth of Great 
River westward, being capped above by the White limestones of the 
Oceanic Series, and in their sea ward extension cut into many terraces, 
upon some of which are plastered old coral reefs like that shown near 
Barbican, in Figures 33 to 36. Superb exposures are seen around the 
interior end of Lucea Harbor and in the uplands to the south half way 
across the island along the road leading toward Savanna-la-Mar, In this 
region the beds are intensely folded, faulted, and overthrown, as shown 
in the view on Plate XXII. It is our opinion that nothing less than 
months of minute study of the complicated folds of this region would 
reveal the detailed sequence of the individual members of the beds in 
this parish. The following section may be inferred? from descriptions 
of Brown and Sawkins. The formation names are ours. 
Richmond Beds. Feet. 
Thin laminated beds of red, gray, and greenish shale . . +200 1 
Beds of pebbly conglomerate, overlying beds of massive brown- 
ish and gray sandstone . . . 300 
Greenish brown laminated ala, Laara a thin beds 
of fine-grained sandstone . . . «^ « s 4 9 ron or non 4-2000 
1 Jamaican Reports, p. 68. ? Tbid., pp. 121, 122. 
3 Ibid., pp. 252, 253 (“ Black Shale”). 
