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manner of pebbles, with the stratification. The most remark- 

 able feature of these inclusions is that they are all of the same 

 lithological character : very dark gray to nearly black in color, 

 finely and imperfectly crystalline to almost com[)act in texture, 

 and entirely massive in structure. The resemblance to the 

 dark gray melaphyr of the Huit's Cove area is very marked, 

 the main point of difference being that the inclusions or pebbles 

 are blacker. They are seen, however, on close examination, to 

 contain threads and amygdules of chlorite and calcite ; while 

 the fact, which has been observed re[)eatedly, that steam-holes 

 on the original surface of a pebble are now filled, not with 

 chlorite, etc., but with the fine greenish gray slate and minute 

 fragments of the melaphyr itself, points- to the conclusion that 

 these secondary minerals have been developed in the pebbles 

 subsequently to their inclusion in the slate, the melaphyr having 

 been comparatively fresh and unaltered at the time of its 

 enclosure. The pebbles, although scattered to some extent 

 through the slate, are distributed chiefly, as stated, in several 

 zones or layers from three to six or eight inches in thickness. 

 Under the lens, however, the fragments of melaphyr are seen 

 to be of all sizes down to the finest sand and dust ; and this 

 almost impalpable debris of the melaphyr, which really forms a 

 considerable fraction of the whole, is not limited to the pebbly 

 layei's, but pervades the entire thickness of the dark gray slate 

 and is, obviously, a sufficient explanation of its darker color. 

 Following the shore southwest from this little quarry, we 

 find from 40 to 50 feet higher up in the slate several other pebbly 

 layers from a few inches to a foot in thickness. These, however, 

 are strongly contrasted with the preceding, in being made 

 up of the normal variety of pebbles, different kinds of granite 

 and felsite chiefly ; but including, also, an occasional pebble 

 of precisely the same black melaphyr. This circumstance 

 alone proves almost beyond the possibility of a doubt that the 

 enclosed fragments of the lower layer's are genuine pebbles, and 

 not due in any way to the alteration of the slate. Again, these 



