Present
averageLastsPerVessel given by Thomas (1935 Appendix 4) is 2 to 4
averageLastsPerVessel given by Thomas (1935 Appendix 4) is few
averageLastsPerVessel given by Thomas (1935 Appendix 4) is many
averageLastsPerVessel given by Thomas (1935 Appendix 4) is moderate
averageLastsPerVessel given by Thomas (1935 Appendix 4) is reasonable
averageLastsPerVessel given by Thomas (1935 Appendix 4) is ?
averageLastsPerVessel assumed to be 15, based on Thomas, 1935 (cited in Jonsson, 1994)