chusetts; near Trenton and Camden, New Jersey; along 
the Chesapeake and Delaware Canals; etc. The most 
extensive of these deposits is at Kreischerville on Staten 
Island, New York, where the amber occurs with lignites. 
Leaves of Sequoia heterophylla Vel. and S. reichenbachu 
(Gein) Heer, Widdringtonites, Juniperus and question- 
ably Dammara, as well as a few remains of Pinus, occur 
in close association with the amber. Hollick (1905) con- 
cluded that the most probable source was Sequoia. This 
was also the conclusion concerning the source of amber 
occurring in Japan. 
Other amber (chemawinite) of presumed Late Creta- 
ceous age has been reported from Cedar Lake, Manitoba, 
Canada (Harrington, 1891; Walker, 1984; Carpenter 
et al, 1938), although the source rocks from which this 
material is derived are not definitely known. A consider- 
able concentration of amber occurs with fragments of 
decayed wood along the shores of the lake. Neither the 
plant fragments in the amber nor the wood have been 
investigated. Lack of succinic acid, difference in reaction 
with solvents, and a greater resistance to heat led to the 
conclusion that it was distinct from Baltic succinite (Har- 
rington, 1891). It contains more carbon and less oxygen; 
in this respect, Harrington believed that it more closely 
resembles walcowite and some of the more recent copals 
from India. Smallness of the amber grains (58% being 
less than eight mesh and only 8% being larger than two 
mesh) was pointed out by Walker (1984) as differing from 
the larger size of the masses characteristic of the Baltic 
deposits. He further suggested that this might indicate 
conifers of the types yielding little resin when wounded, 
in contrast to those which produced copious resin in the 
Baltic forests. Consequently, although the material ap- 
pears different from succinite, no specific plant source 
has been demonstrated. 
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