During this period, [Sigma]PFD was measured five times with Ozalid paper light meters set on bricks, just above the water surface in the middle of each side of each channel.
Daily integrated photon flux density ([Sigma]PFD) was measured with Ozalid paper meters from dawn to dusk on a sunny day.
Stacks of diazo paper (200SE Ozalid
paper made by Film Paper Corporation Company of America) were constructed into booklets containing 20 sheets.
copy of copyist's score, with extensive corrections, which incorporates most of the revisions from Item 6 with a notation on the front cover: "WS's score with corrections.
David and issued by the library as ozalid
reproductions under the auspices of the Federal Music Project in 1938 and 1939; (26) and Richard Wolfe's Secular Music in America, 1801-1825: A Bibliography, published by the library in 1964.
Because large-ensemble music requires multiple copies of instrumental parts, materials for unpublished works--and some published ones--were duplicated from manuscripts by the ozalid
process in the era before photocopying could produce legible parts.
Somewhere above Colorado, the Rockies are spreading like ozalids