It is also necessary to the application of the exemptions that the
operation of which the employee's work is a part be performed on the
marine products named in the Act. Thus the operations described in
section 13(a)(5) must be performed with respect to ``any kind of fish,
shellfish, crustacea, sponges, seaweeds, or other aquatic forms of
animal and vegetable life.'' The operations enumerated in section
13(b)(4) must be performed with respect to ``any kind of fish,
shellfish, or other aquatic forms of animal or vegetable life, or any
byproduct thereof''. Work performed on products which do not fall within
these descriptions is not within the exemptions (Fleming v. Hawkeye
Pearl Button Co., 113 F. 2d 52; Mitchell v. Trade Winds, Inc., 289 F. 2d
278; Walling v. Haden, 153 F. 2d 196).
