106 Physics and Chemistry. 
portion of the skin of the neck, which is preserved, and in 
which the nuchal plates are the same as in the species just 
med, . 
SCIENTIFIC INTELLIGENCE. 
I. PHYSICS AND CHEMISTRY. 
cipal results of e, in the author’s own words, as follows: 
1.) Different substances heated to 150° C. radiate different kinds 
of heat 
(2.) There are bodies which radiate only one kind of heat and 
others which radiate many kind 
kinds of heat. : It therefore does not, as Melloni and Knoblauch 
suppose, permit all kinds of heat to pass through with eq 
facility. 
not monothermic in an 
nalogy with its own 
