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== MONDAY 26 APRIL 1971 ==
== MONDAY 26 APRIL 1971 ==


116th day - 249 days to come
116th day - 249 days to come
----
----
From <u>Claude</u> I got three copies of <u>SCIENTIFIC AMERICAN</u>:  
From <u>Claude</u> I got three copies of ''<u>SCIENTIFIC AMERICAN</u>'':  
May 1970, Dec. 1970, Mar, 1971 - The latter also had an article
May 1970, Dec. 1970, Mar, 1971 - The latter also had an article
on "Unsolved Problems in Arithmetic" which I kept.<br>
on "Unsolved Problems in Arithmetic" which I kept.<br>
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Rcd. a letter from [bracket] <u>Arthur B. Katz</u><br>
Rcd. a letter from [bracket] <u>Arthur B. Katz</u><br>
2730 Tannton St.<br>
2730 Taunton St.<br>
Phila., Penna. 19152<br>
Phila., Penna. 19152<br>
(215) 677-1721<br>
(215) 677-1721<br>