606 MISCELLANEOUS. 
Description of the exact Locality of the immense masses of Meteoric Iron in Pos Mexico, 
with the senior of one recently mosis ered — Prof. J. LAWRENCE SMIT 
On Dentistry as practiced by the Romans 600 years B. C.—By Dr. Ezra REA 
Tuar following abstracts of remarks, ma ade in connection with several 
papers, are of sufficient interest se? ae t, though the papers to which they 
should have been cig tebe pb appear owing to paris failing to receive 
abstracts from nee ra 
Prof. Es W. D ‘remarked in the discussion of the paper by Dr. 
Smith on the U aTabiDDi D ottom,” that his own observations in the 
Tensas Botta m, in Louisiana, confirmed those of Dr. Piua lnk. of He 
best land there, is a genuine prairie soil, full of calcare cretion 
a feature entirely foreign to the tae fe er alluvium as well ik ‘the modern 
paludal deposits. These calcareous concretions appear to resu ult fro 
the maceration and dissolution of ‘ash iu ssi] shells, as distinctly obeetyall 
in several Sbeatities: and are very characteristic of the lower portion of 
the Port Huds eds. Bieg» can be no doubt that a Bs P portion 
of ene celebrated “alluvial” lands of the lower Mississippi a o al- 
luv all, but aatend result from the disintegration of thas 
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atte b ioi 
ring the discussion on Prof. ArOWA, paper on the “ Geology of 
Ohio,” the following remarks were made 
Prof. A. WincHELL remarked that he had examined the banni 
stone taken by Professor rans ing vs from a coal bed in Ohio and felt very 
confident that it was a genuine boulder of Ca rhanitecisie times. “phe 
fraginent showed that the rock che d been a smoothed and rounded frag- 
ment of quartzi os g urky grains of quartz, and 
that in Agee a it was undistimguishabie from surface boulders of 
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from the far north. Whatever these agencies hog t a hot We un- 
likely that an occasional boulder should become mingled wit tb the vegeta- 
ble and alluvial materials quietly accumulating for the formation of a 
a bed of coal. 
: HITE Said he igs r not a = Agere of any horn- 
iade in this piece of rock under his ler It seems, to be nly a 
quartzite, similar magros eth whioh ae had rie foun e n the coal-meas- 
ures of Iowa. e had s of quartzite imbedded 1 in the very 
so pure hpi esne of he owes Coat tae sures there, which ha d 
evidently been formed as quartzite just where they are, as the lines of 
c roug e soft vi 
gs: THe 
small, have ortpwated eed not n w be dis ped: büt i it is phat that 
they did originate where we now find them. He pie not help regarding 
this mass as having a similar origin. 
During one of the general Daar Prof. A. H. WorTHEN said paren 
the vertical range of the rem of the mammoth and mastodon i 
4 À riempi 
