Encyclopædia Britannica 1771–1860
Topic · 2 of 8 editions · peak 16,265 chars

IV. AMOUNT OF AIR NECESSARY FOR VENTILATION

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EditionAs printedTypeCharsLocationvs. previous
7th ed. (1842) II. AMOUNT OF AIR NECESSARY FOR VENTILATIONsub_entry14,379vol. 21, p. 596
7th ed. (1842) VENTILATIONarticle6,696vol. 21, p. 595
8th ed. (1853–60) IV. AMOUNT OF AIR NECESSARY FOR VENTILATIONsub_entry16,265vol. 21, p. 540substantially revised · J 0.41
8th ed. (1853–60) VENTILATIONarticle8,286vol. 21, p. 539substantially revised · J 0.51
8th ed. (1853–60) VII. VARIETIES OF VENTILATIONsub_entry7,240vol. 21, p. 542