This sixth edition follows in the tradition
of the first five by providing the reader with fundamentals
of machine selection and production estimating in a logical
and concise format. Significant changes have been made to
this edition, however. A new chapter covering Finishing Equipment
has been added. Draglines and clamshells, which were covered
in previous editions as part of Excavating Equipment, are
now in a separate chapter. The Excavators chapter has been
expanded to include material on specialty excavators. Each
of the remaining chapters has undergone revision, ranging
from simple clarification to major modifications, depending
on the need to improve currency of information, organization,
and presentation of concepts.