SCIENTIFIC SURVEY. 3^9 



timber on the shores should warrant the expense. Many logs of 

 considerable size were decaying near the outlet, having lain in the 

 mud, apparently, for several seasons. Around the dam the ordi- 

 nary herbs attained a good size, indicating alluvial fertility. But 

 the land at a little distance from the lake is exceedingly rocky and 

 ledgy. Cladium mariscoides, Torr., (" Twig rush,") grew plenti- 

 fully along the shore in the soft clay and sand, whereas it usually 

 has been found, in Maine, in Sphagnous swamps. The distance 

 from the head of Woboosoos to waters flowing into the Machias, 

 is very short. 



From Woboosoos we returned to Pocompus, and commenced to 

 ascend the arm leading to Sysladobsis lake. In this narrow river- 

 like arm the water is very deep, or at least so deep as to afford 

 a great contrast to that which v^e had just left. Much of the shore 

 is lined with v/ater lilies, everywhere floating with Nuphar advena 

 and Kalmiana. 



Sysladobsis lake we reached by a short carry. This lake is at 

 once recognized by the long island, by no means well represented 

 on the map, parallel to the eastern shore. There was the same 

 appearance of a good pine country all around the lake, as of that 

 we had last been examining. During this day we made a greater 

 distance in our bii'ches than on any day previous, having twice 

 measured Pocumpus and sailed on both sides of Sysladobsis. 



The water being so low as to forbid our exploration of the Chain 

 lakes lying off to the west, and the smaller lake at the north, we 

 commenced to return. We arrived at the " Dobsy" carry at ten 

 o'clock A. M., on the 19th of August. As I shall not have occa- 

 sion to allude to this lake again at present, it will be well to give a 

 brief account of its topographical and physical characteristics. It is 

 a long, twice-curved lake, extending through the length of a whole 

 township, and receiving water from the north-eastern, northern and 

 western tributaries. From the north-east there empties into it a 

 small stream supplied by a pond of very trifling size ; on the north 

 it is augmented by water from "Second Dobsy" or Sysladobsis, 

 which is the most western lake of this long chain ; on the west it 

 receives a stream from the Chain lakes, which are of small size, in 

 township 4 in the 1st range. There are two large islands in the 

 southe.rn part of the lake, each of which are covered by fair pines. 

 The lake is of greater depth than Pocumpus, and of larger size. 

 From a brief examination of the shores in one portion of the lake 



