``Practices * * * performed * * * on a farm'' must be performed as
an incident to or in conjunction with ``such farming operations'' in
order to constitute ``agriculture'' within the secondary meaning of the
term. No practice performed with respect to farm commodities is within
the language under discussion by reason of its performance on a farm
unless all of such commodities are the products of that farm. Thus, the
performance on a farm of any practice, such as packing or storing, which
may be incidental to farming operations cannot constitute a basis for
considering the employees engaged in agriculture if the practice is
performed upon any commodities that have been produced elsewhere than on
such farm (see Mitchell v. Hunt, 263 F. 2d 913). The construction by an
independent contractor of granary on a farm is not connected with
``such'' farming operations if the farmer for whom it is built intends
to use the structure for storing grain produced on other farms. Nor is
the requirement met with respect to employees engaged in any other
practices performed on a farm, but not by a farmer, in connection with
farming operations that are not conducted on that particular farm. The
fact that such a practice pertains to farming operations generally or to
those performed on a number of farms, rather than to those performed on
the same farm only, is sufficient to take it outside the scope of the
statutory language. Area soil surveys and genetics research activities,
results of which are made available to a number of farmers, are typical
of the practices to which this principle applies and which are not
within section 3(f) under this provision.