American Association for the Advancement of Science. 
Cincinnati Meeting, -A.ngnst XT', 1S81. 
BLANK FOR TITLE AND ABSTRACT OF COMMUNICATION. 
No.. 
Section . 
Subsection 
Title of Papery ^ 
-of ^ ^ 
Name aiul address of author 
/ rv' 2^ ^ — 
^ 
By instructions of the Standing Committee, Title?s of papers will not be put on the list 
leir abstracts on the slieets contain 
jquest that the titles and abstracts 
; least one week before the meeting wh 
le abstract b 
e titles of their papers. The Committee also 
it to tlie Permanent Secretary at an early day, 
cticable. It is also particularly desired that 
uld the paper be accepted by tlie Standing Coi 
Copies of this blank can be had of tlie Perma 
Secretary^ Salem, Mass. 
JlBSTRAC P OF PAPER ENTERED ABOVE: 
\CT OF 
jrA. ^ 
George EngelmMH f.-.; 
p?.?er 5. 
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