. Elements of acoustical engineering. Electro-acoustics; Sound. ^ mTm ty 1 - c. ad* â JSNOds^a ^ c c c c / 7^ ~t \ \ I c / ( / o D C C C o o^ O J2 .2 3 a. S5 5 3 in rt W5 u > i; TD u jG nj <U c/J 4^ C O '-t-- O- « M '^'S ni g n CO. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Olson, Harry Ferdinand, 1901-. New York, D. Van Nostrand company, inc.

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Keywords: ., bookcentury1900, bookcollectionbiodiversity, bookleafnumber146