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April 9, 1930.


Dr. C. C. Messner,
U.S. Public Health Service,
Washington, D.C.

Dear Doctor Messner:

Careful study of the equipment and supplies aboard the "Northland" last year leads me to recommend the following:-

1. The supply of rubber aboard is now so old that it should be removed and a new supply put aboard. There is not time for denture work, so about 1 pound of red and 1/4 pound of pink will be plenty. An occasional repair is all that could be made.

2. The nitrous oxid outfit has never been set up. It occupies valuable space and the cylinders are difficult to secure. Therefore I suggest that it be left at Oakland. It can be taken aboard another year should it be wanted then.

3. A spotlight attached to the unit is badly needed. The Ritter Co. make a small one, such as we have on the units at the Columbia University Dental School, that I am sure could be mounted at small cost. As it now is, there is great difficulty in seeing in the back part of the mouth.

4. The CDX unit arm is almost too short to reach the headrest. The Victor Co. make an extension about one foot long that attaches to the wall bracket and the present arm can be attached to it, giving just the additional required length. This costs very little and can be easily attached.

5. A 5 x 7 Cassette for extra oral films. I took mine up last year, but there should be one aboard. There was one 12" x 16", but it is entirely too clumsy for headwork.

6. A small ring holder for drinking glass should be attached to spitoon arm. In the rolling sea it is the only way to hold the glass in place.

7. 6 drinking glasses to fit.

8. Paper cups - 3 gross would be a great convenience.