Taxacom: Voss 1952 history of keys

[Geoff Read]

Hi all,
Voss, E.G. (1952) The history of keys and phylogenetic trees in systematic
biology. Journal of the Scientific Laboratories, Denison University 43(1):
1?25

Cited favourably years ago on Taxacom. Does anyone have a pdf please?  It
is not online afaik  (Haithi trust has it but I don't have access).

Many thanks,Geoff
-- 
Geoffrey B. Read, Ph.D. 
Wellington, NEW ZEALAND 
gread at actrix.gen.nz