Instructions to Authors 
Contributions should be on plain paper, approxi¬ 
mately 8"x10y2" (20x27 cm.) with text width over 
7" (18 cm.). An original and one good copy should 
be submitted. Pages should be typed single space 
and in a compact format. Each page of a submis¬ 
sion should be sequentially numbered and nota¬ 
tion provided as to the location of tables and 
figures. Authors must assume responsibility for 
the accuracy of their copy as the Bulletin will not 
edit unsolicited material. 
Communications on research investigations must 
be short and informal in nature. Unsolicited sub¬ 
missions that constitute or resemble formal 
manuscripts will not be accepted for publication. 
In order to facilitate publication, the Editor 
requests that submitters refrain from the use of 
subheadings and sections devoted to "Materials 
and Methods," "Summary," "Acknowledge¬ 
ments,” and "Bibliography.” References, when 
appropriate, should be incorporated intothetext in 
short form. 
