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    Author(s): Floyd A. Johnson
    Date: 1956
    Source: PNW Old Series Research Notes No. 133, p. 1-10
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (750 KB)


    During April 1956, about 20,000 boards from 210 white fir and 290 western hemlock logs were measured at a lumber mill in western Washington. A magnetic drum, data-processing machine (type 650) was then used to calculate board-feet volumes by lumber grade for each log, and average board-foot volumes by lumber grade for each log diameter-class within log grades and within species. This first phase of the analysis was accomplished in 18 minutes of machine time once the board measurements were punched on cards.

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    Johnson, Floyd A. 1956. Processing mill scale study data on a type 650 electronic machine. PNW Old Series Research Notes No. 133, p. 1-10

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