A novel use for polyethylene bottles

By selectingthe proper sized bottle and trap it is possible to obtain tight, well-fitted arrangements. Dewar flasks intraps protectedin this manner ar...
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A Novel Use for Polyethylene Bottles

he too of

the'oðvlene bottle is cut off so that the bottom nnrt can be fitted &er the

be broken from accidental impact or from vibrations. Mention of brand or firm names does not constitute an endorsement by the Department of Agricnltore over othem of a similar nature not mentioned.

Volume 48, Number 6, June 7977

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