This
draft was approved the Park Service and all corrections and
suggested changes have been incorporated into the final report.
This final report the history Edison's laboratory
began National Park Service Contract number 1600-4-0047.PREFACE. Carlson has contributed material the storage battery and
Portland Cement and has written the sidebars for chapters seven
and eight.
Dr.
W. primary author, however, responsible for all
errors the text.
A.J. produced new version of
the history and delivered the first months 1987.B. Carlson and won the contract June 1984 and formed
Electro History execute it. this point was decided
that more research was required. Millard
Electro History
28 October 1987
. carried out the research at
the Edison National Historic Site 1984 and 1985, and jointly
wrote first draft June 1986
