Chemistry and Physics. 481 
SCIENTIFIC INTELLIGENCE. 
I. CuHemistry AND Puysics. 
On Manometrie Flames ; by Dr. R. iol of Paris.—- 
[The following 18 a translation of the latt tter part of Dr. Konig’s 
admirable paper “On manometric flames,” recently published in 
Poggendorg’s Annalen, Bd. 146, 8. 165. The figures annexed are 
from electrotypes which accompanied the acoustic apparatus re- 
cently sent pda Dr. Konig to the Stevens Institute of ‘Technology. 
—A. 
eae Rewantinds —In describing the results obtained by 
the combination of the notes of two organ pipes, I did not make 
1. 
mention of unison. rn combination of two notes in unison is of 
and the attending phenomena of interference. I there elt — 
to describe them in connection with other similar experimen 
