00832cam a22002051i 4500001001300000003000400013005001700017008004100034010001700075035001900092040001800111042001200129050001800141100003400159245015000193260003400343300004300377500018900420999001700609ca 17001172 DLC20260227111103.0790924s1848    maua          000 0 eng    aca 17001172   a(OCoLC)5418699  aDLCcMHidDLC  apremarc00aTH7683.V4bE51 aEmerson, Frederickd1788-185700aCommunication to the American Academy of Arts and Sciences,brelative to a late report on ventilators and chimney-tops / by Frederick Emerson. --  aBoston :bC. Stimpson,c1848.  a12 p., 1 l. :billus. ;c21 1/2 cm. --  aDeals 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.  c15043d15043