CONTENTS 
ART. a Teta of the Atmospheric Absorption; by 
PAN OU oe ca ss oe Dee 
REMC Tomados: by HAD Haz ies aes 
XXIV Absorption Be, Radiant Pent by Carbon Dioxide; 
J K 
ie EELER o. e se ee ek 
XXV —iviasic Insects from the Rocky Mountains ; by 8. 
We OU ODER 0 4 athe ee wu 
AXVI. —Flesibilty of Itacolumite; by O. A. Dery, .---- 
XXVII.—Age of the Glazed and Contorted Slaty Rocks in 
the ees of Se eatin Landing, Rensselaer County, 
ee Gee ey a ae ae 
| exe Nees of the remarkable ine Fauna occupy in 
‘ eo yates banks off i bitrate: Cant of New ‘Englan sy 
= by AcE: Verrntjeies 2c: ; 
eo XXX. ction of che? Blue Bees, near Sica Falis, 
= ‘irginia; a modified view ; vk PBELL, - 
pote erin INTELLIGENCE. 
a Pasi — Photographing Colored Objects fe their Raunt s Shad : 
Measure Ma forces ns of Hyd 1 
epaprinsdi sur le Mascare, sone ti 
i Pras sg 
fl Geology and Mi presets — 
, “Eecond Glacial Ryness 
and . 0g) RAY’ 
Engl: ge t Mor 
the "brit eine 8 Sir : 
