258 Scientific Intelligence. 
rites having been encountered in the section, The <a 
vity of the fragment is 7:52. On being etched with a dit 
- Ls re ; 
most nearly resembling those of the Seneca Lake iron—the — 
difference between the two consisting mainly in a less breadth 
to the bars by about one-third, in the former of these irons. 
I have thus far found time only to examine the filings (or 
rather sawings) of this iron for sulphur and nickel. The first 
is wholly wanting, while the latter is abundantly present. 
Amherst College, July 21, 1868. 
SCIENTIFIC INTELLIGENCE. 
' 
I. CHEMISTRY AND PHYSICS. 
1. Hinrichs’s Atom Mechanics.—That the readers of this Jou 
nal may judge of the estimation in which Prof. Hinrichs’s beeen 
Atom-mechanics is held abroad, we translate from the German 
Professor H. Fleck, of Dresden, the following notice, the original 
of which will be found in the Jahrbuch fiir Mineralogie, eli’ 
_ Under the title of “ Atom-mechanics, or Chemistry a Mechar 
tes of the Pan-atoms,” Mr. Gustav Hinrichs, Professor of Ph 
ics, Chemistry and Mineralogy in the University of Iowa, ee ‘ 
United States, has published and multiplied by metallogrt i 
ntal eo 
all chemical elements. The chemically active atoms of the @ 
ments, by the association of which chemical compounds oe at = 
produced, are formed by the grouping of these pantogen-a” fur 
med by the grouping ¢ nis fi 
art and others, 
tion so solid and philosophically concrete, that serious 
the existence of primary material atoms, whether we pa 
essence of the phenomena of chemical change, 22¢ ! 
cognition Mr, Hinrichs will un ques tionably obtain the reputatio® 
of a second Kepler, 
