vill CONTENTS, 
NUMBER LX. “a 
Arr. LIL—On Southern New England during the »« ‘ng of 
‘the ibe " Qlacier; by Jamus D. Dana, -- 2c 
LIIL—Ammonia a constant contaminant of Sulphu: io Acid ; 
www ew ee ew www Be eee ee eH wt mee ee 
by DWARD SUE 
LV.—Studies on Seagnede Distribution; by H. A. Row1anp, 451 
eee’ —Notes on a a Feature in the “Comstock Lode; 
by G, P. Bzc 45 
LVIL. —Notice of Ne ew and Interesting Coal Plants; by oa 
Wa eh, ABD ORR se eeu wien it 
LVI. clears i we Editors, from Dr. B. A. Goutn, --- - -- 466 
SCIENTIFIC INTELLIGENCE. 
Chemis yooh have dhe ghey —An Air Damper for Balances, ARZBERG ER: On a Con 
enient method of Preparing Sulphuryl Chloride, BEnREND: Action of dilute 
{ine ~ —- on Bleaching Powder ,Koprer, 471 Method for the Quantitative 
epara of Ferric Oxide, FiigHt: On the Gases enclosed i in Pts THOMAS, 
ee i thevscoheiis Acid, LIEBERMANN and Fiscuer: On the Quantitative 
Jetermination of Vanillin in Vanilla, Tiemann and HAARMANY, “473. —On the 
tion of Arsenic in the" Tissues: Cold Bands of Dark Spectra, Desaiss and 
\GMONET, 474.—Luminosity of Flames, WIBEL, 475.—Rotatory Polarization of 
—_ Soret ani i 
POOPOOR PES 
we =1 
Gato and Natural Hr ee rdial fossils in pebbles of Newport Conglome- 
te, W. B. Rogrrs: eres near + Batario, Genesee County, New York, 419.— 
Ons a method of distinguish: ld F 
perties, DesCLoizEaux, 480. —Contribuzoni Mineralogiche per servire servire alla Storia 
dell’ Incendio Vesuviano del Mese di Aprile, 1872, memoria di eee 
Scaccut: Materiali r Mineralogie 
Astronomy.—Observations on the late Transit “of Venus at Beechworth, Victoria; 
by Henry J. ‘ANDERSON, 484. 
Miscellaneous Intelligence.— rson School, ALEXANDER AGASSIZ, 
485.—Annual Report of the Board of taut of the Smithsonian Institution, 
487.—Croll on Climate and Time: A Course in Descriptive Geometry for the use 
of Colleges and Scientific See by Wituisam Watrer: American Natura 
list: School of Geology in the University of Syracuse, 488. 
NUMBER LX*. 
Arr. LIX.—On the Solar Chromosphere; by S. P. Lanerey, £99 
LX.—On See apres. of the — pity Sek Fn Glacial 
flood; by James D. Dana,.....-..-_-- — 
