TY  - BOOK
AU  - Emerson,Frederick
TI  - Communication to the American Academy of Arts and Sciences,: relative to a late report on ventilators and chimney-tops / by Frederick Emerson. --
AV  - TH7683.V4 E5
PY  - 1848///
CY  - Boston
PB  - C. Stimpson
N1  - Deals with only such portions of the report as in the author's judgement do him injustice by attempting to disprove the originality of a ventilator lately invented and patented by him
ER  -