half inch of water in the tray, in some places this

done. the variebility ves in the dry parts of the
Hot only was the gumed peper more reproducible, dut

yielded higher collections, even vhen it rained, This

couldn't account for, Water vas being spilled in the
of transfer.

These are things ve have no control over

100 different people, all using their ovn techniques

transferring from trays to jars,
LIESYs

|

Could ve have a little description of this gummed
Gumed paper uses the same adhesive vhich is on the
Kleen label, which you can stick on laboratory glas

pull right off.

It has very nice properties.

It

its adhesiveness over a uide range of texperatures

vhen vet, Our interpretation of the fact that we get a],
highly efficient collection vhen it rains, is that theP~° = 7
particulates are fapacted on to a gumed surface and stick, |

letting the water run off, Sow, ve do know that 50% of /it |

1s ruming eff, Of course, cur interpretationof that fsthat

this 50% is in solution, It is mate up of solids in

" of very fine particles, But the percentage that russ

th} forns
off is

fairly uniform - eo lower Limit about XS, upper linit

804.
LIBBY:

Then you vould not necessarily dissgree with Mr. Long's

statement. Mr, Long suggested the miseing 60% vould belrain
which you didn't catch on gumed paper.
nO
Panartivent af ta,
farce

rhino ctemaw fe

mn
at

.

et

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