234 Scientific Intelligence. 
2. Lower Devonian fossil- ira wg wipers att: rocks in the 
region of Bastogne, Belgium (town of Luxembourg). —A paper 
A. Renard, on the lithology of these metamorphic Devo- 
nian rocks, is published i in Volume I (1882) of the Bulletin of the 
Belgian Royal Museum = Natural History. The beds belong to 
the middle member of the Coblentzian group of Dumont, called 
and chloritic quartzytes, garnetiferous fossil-bearing quartzyte, 
and chloritic et eo schist also fossiliferous. M. Renard 
has studied the rocks both by chemical analysis and the micro- 
scope. He fou od in the hornblendic quartzyte, 30°62 of quartz, 
37°62 of hornblende, 20°85 of mica, 4°14 of garnet, 1°02 of titanite, 
1°51 of apatite, and "4°80 of graphite (visible i in scales), with some 
ottrelite. rape actinolitic rock consists of quartz 52° 36, horn- 
blende 46°73, with traces of titanic iron, mica and graphite. 
hornblende (actinolite) i is in sietlnged fibers. The garnetiferous 
late con of biotite and garnet, with pees in 
gives analyses of the ottre 
vag mass of Oretddebus Amber from Gloucester se 
New Jerse by Gro. F. Kunz. (Read before the New Yor 
Academy of Sciences, _— Sorat 5th, 1883.)—A bout twelve ‘ie 
ago a mass of amber ommon size and shape Sees Se ihe 
inches long, six ie wide and one inch thick, and w ighing 
Man’s 
quarter inch section showed a light grayish yellow color. A 
parent yellowish brown r. ass (surface and 
interior) was filled with botryoidal- Magee. cavities sp with 
beta: or green sand, and a trace of vivia ardness 
is the same as the Baltic amber, only slightly soulicr and cut- 
ting mor re like horn, and the cut surface showing a curious pearly 
luster, differing in this respect from any other amber I have yet 
examine is luster is not to meno by the impurities, for we 
oe 4 seri show it the best. It admitted of a very good pot 
0% 7 orm of avery pure piece of the carefully 
mostly of Opies vesicularis. 5. Gryphon Pite. hori. some ere 
tula Harlani and others ; the u r part of the marl, ‘consisting 
re a large layer of cis oe several feet in thickness, filled with 
