Shorter correspondence relating to applications to visit or work at the laboratory. Similar material to above, but less extensive.

Folder C.239. 1951.

Folder C.240. 1952-1954.

Folder C.241. 1955-1956.

Folder C.242. 1957.

Folder C.243. 1958-1959.

Folder C.244. 1960.

Folder C.245. 1961.

Folder C.246. 1962.

Folder C.247. 1964-1966.