SCIENTIFIC SURVEY. 33;[ 



of the lake is evidently the same rock, also Kineo Jr., and the 

 associated peaks to the north-east. Ilornstone or flint are other 

 common names for this rock. It is extremely difficult to ascertain 

 the position of the strata of Mt. Kineo. On the west side one 

 would fancy that the strata were nearly horizontal ; and a view of 

 the east side appears like an inverted crushed anticlinal axis, the 

 strata at the base of the mountain being nearly vertical. The best 

 way of learning the position of these strata will be to ascertain the 

 position of the adjacent rocks, and infer thence the position of the 

 former. On the beach south-east from the mountain, and upon 

 the south side of the range, is a slaty micaceous sandstone dipping 

 under the mountain, or 15° N. W. Mt. Kineo is almost an island, 

 being connected to the main land only by a sand bar. 



In a short excursion to Farm island we found specimens of great 

 interest. The rocks are indurated sandstones dipping 60° S. E. 

 Ripple marks are occasionally fuund upon the strata. The dip is 

 smaller near the north end of the island ; and upon the west side 

 drift deposits have entirely obscured the older rocks. They dip 

 towards Mt. Kineo. The most interesting thing discovered upon 

 Farm island is a fossil plant, allied to the Facoides Gauda-galli of 

 authors, so called from its resemblance when spread out upon the 

 rock to the tail of a rooster. West of New England and in Lower 

 Canada this fossil is the characteristic form of life found in one 

 formation of grits or sandstones; hence receiving the name of 

 Cock-tail grit or Cauda-galli grit. This formation of fifty or sixty 

 feet thickness is situated just above the Oriskany sandstone else- 

 where ; and so it is here. For Oriskany sandstone fossils have 

 been obtained from the shore north of Farm island, whose strata 

 dip southerly towards this locality. Hence we are enabled to 

 chronicle the discovery of another fossiliferous formation in Maine, 

 similar to those well known elsewhere. Upon our map last year, 

 this formation must occupy the south-eastern border of the belt of 

 country represented as Oriskany sandstone. 



The thickness and distribution of the Cauda-Galli grit in Maine 

 cannot of course be even conjectured from the discovery of this sea- 

 weed. Perhaps this may not be the very same species with the 

 one found elsewhere, but it is generically the same ; that is, if a 

 separate genus was made of the common species, this new one 

 would be a Cauda-galli from Moosehead lake, and this generic, 

 resemblance, we suppose, is sufficient for the identification of the 



