1897J MICROSCOPICAL JOURNAL. 125 



Wee(][aafliick lake was known to the Indians hut lias 

 disappeared now, liein;:^' left as a marsh with clear places 

 in it where the water was clear but shallow. It is at 

 Waverly, about four miles from Newark and close to 

 Elizabeth. I found first that they were digging for the 

 railroad just south of the Marsh and ahnc^st a yard down 

 they turned up a dark, almost black soil. Tiiis I secured 

 ■Uid examined. I was delighted to hud that it consisted of 

 neai'ly pure brackish water forms of bacillaria. (loin^ to 

 the place where they were digging to secure some more of 

 the earth, I saw that the embankment which was formed 

 of glacial moraine, in this case being in the majority of 

 sand and gravel, lia«i been laid across a marsh which 1 

 also learned luid been called Weequachick lake. But the 

 soil at the bottom had not been firm enough to bear the 

 weight of the embankment which had sunk, crowding- up 

 the bottom otthc marsh. At one place, it rose in mina- 

 ture hill, about six to eight feet high. In this place, 1 

 collected it, and found it was peaty on top, and, for five 

 feet down, it contained brackish forms of bacillaria, and 

 below that for at least two feet it was made up of fresh- 

 water forms. Beneath till was the glacial moraine which 

 at this j)lace is over thii'ty feet thick. Where the fresh- 

 water and th(i brackish watei- liaclllaria joined, there was 

 a mingling of forms, so that one could collect a fresh 

 water ini'usoi-ial earth having some salt water found in it. 

 Thus, I got Navicula viridis and other forms along with 

 Triceial iiim fa\iis. 



Then I stu<litMl the infusorial earths which I had oi 

 could procure atid I got over a hundrcMl and I found that 

 they all contained essentially the same fresh-water forms. 

 And I collected ,an\' clay that occurred everywhere in 

 New .Jersey and I found it contained spai-sely the same 

 t'orms. And I came to the conclusion that they were all 

 one ill the Iceberg period (days of the world. This is 

 the conclusion I have come to now. 



