SCIENTIFIC SURVEY. 287 



10°-15° northeasterly. The last seen of this formation is just in the 

 edge of Jackman,- where a few fucoids and shells were obtained. 

 The dip of the strata is 15° N. 60° E., and that of the cleavage planes 

 much greater in the same direction. The rock is clay slate. This 

 locality is at the clearing called the Jackman Farm, and upon the 

 highest land in the Canada road between the Forks of the Kenne- 

 bec and Moose river. 



A range of mountains runs from Attean pond across the Canada 

 Readjust beyond the Jackman Farm, of which Owl's Head is one 

 portion. It also crosses Parlin stream north of the pond, and then 

 trends northeasterly, perhaps to the Kennebec. It is composed of 

 granite at Owl's Head, but not where Parlin stream crosses it, for 

 the sandstone there is beautifully exposed, containing a few fossil 

 shells. The strata dip 20° N. 10° W., at a beautiful cascade of this 

 stream, a couple of miles below the pond. On some of the layers 

 ripple marks were exposed, covering several square yards, and ap- 

 pearing just as perfect as when made in the sand so many thousand 

 years ago. The rocks here reminded us of those coarser sand- 

 stones containing fossils on the east branch of the Penobscot at 

 Johnston's camp and Matagamon lake. We felt uncertain about 

 their position relative to the Oriskany belt last year. We are con- 

 fident these strata are synchronous with the latter, as is proved by 

 the discovery of the Dalmaniles in the vicinity ; and we think that 

 by following Parlin stream up and down, the connection of the two 

 kinds of fossiliferous rocks will be found. Moreover, here will 

 probably be the best place to make a detailed measurement of the 

 Oriskany rocks, and a careful exploration of the whole formation 

 from top to bottom. No one can surely feel averse to such an ex- 

 amination here, although the country is so wild, since the scenery 

 is so grand, the rocks so interesting, and the attentions of Mr. Syl- 

 vester at Parlin Pond Hotel so kind and obliging. It would be 

 a toilsome but a delightful task to explore in this vicinity. 



Granitic Rocks. 

 Two or three ledges of granite and protogine appear in the road 

 between the Jackman farm and Moose river. The country is so 

 much covered with drift that ledges are very rarely seen. We do 

 not suppose these rocks extend as far as Moose river, although no 

 other ledges show themselves previously. Still the width of the 

 granitic region must be about three miles, although extending five 

 miles along the road, since the road crosses the belt transversely. 



