1) Typewritten notes by Sumner, addressed to Ershov. Ershov's manuscript draft telegram, inviting Bill Carlson to conduct panel discussion on ADA in Melbourne. 2) That same telegram.

for a cleared version of the Cocke/Markstein paper. The author informs also that Howard Morgan will speak.

with date of the trip to Amsterdam.

"Denning has withdrawn. If Sanchez failed, then suggest Terrine."

asking consent to organize one more panel proposed by Miyamoto.

F.Sumner and S.Lavington send a copy of the Congress program, both for Tokyo and Melbourne.

urging to investigate IFIP's possibilities to cover author's living expenses during the Program Committee meeting in Amsterdam.

A request to send to Prof. Sumner panelists names (for the ADA panel).

Referees list is received. The attachment contains a copy of the letter to invited co-authors concerning the mode of naming them in the Congress Proceedings.

"One of the authors (Lutz Pietschker) didn't receive your rejection letter."

to all Program Committee members proposing to send publicity material (a photograph and curriculum vitae) and to return Registration Forms for Tokyo and Melbourne.

for the author's photograph and brief curriculum vitae sent to be published in the Congress Proceedings.

Covering letter for two copies of letters exchanged by F.Sumner and N.Gehani concerning comments to the latter's paper, and those copies themselves.

asking to find a way of payment for the stay in Amsterdam during the IFIP 80 PC meeting.

The author accepts the dates of his chairing the Congress sessions, and informs also that he has already replied to N.Gehani.

Ershov's official appointment as the Program Committee's member (English and Russian texts). The letter discusses also some problems concerning the Committee's activity.

concerning editing the Congress Proceedings. There are many remarks and corrections on the sheet.

J.A.Nelder explains the causes of his paper's delay.

P.Webb sends the abstract of his paper and explains why he cannot now send the full text.