Thirty-ninth exhibition of the American Institute, 1870
Subtitle: Report of experiments made with the Porter-Allen engine to determine its economy and effective power
Edition: 2d ed., with appendix.
Publisher: F. Hart & co.
Published: 1878
Place of publication: New York
Language: eng
Number of pages: 28
Notes: Main report signed Wellington Lee; Preface and Appendix signed Charles T. Porter.