The exemption provided by section 13(a)(14) applies only to
employees whose processing operations on shade-grown tobacco are
performed ``prior to the stemming process.'' (See H. Rept. No. 75, 87th
Cong., first sess., p. 26). This means that an employee engaged in
stemming, the removal of the midrib from the tobacco leaf (McComb v.
Puerto Rico Tobacco Marketing Co-op. Ass'n., 80 F. Supp. 953, affirmed
181 F. 2d 697), or in any operations on the tobacco which are performed
after stemming has begun will not come within the exemption. Stemming
and all subsequent operations are nonexempt work.