RUSSIANS INVITED TO THE DAVIS TRIAL
US Govt proposes to 14 leading USSR scientists that they attend 'as observers' forthcoming trial of A Davit, 26-yr-old black Communist militant and philosophy teacher, in San Rafael, Calif, to assure themselves of fairness of proceedings, lr submitted by Asst Sec Hillenbrand; offer, authorized personally by Pres Nixon, is response to scientists Dec 25 cable appealing 'to safeguard the life of A Davis and give her an opportunity of continuing her scientific work'; Davis, arrested in NYC in Oct '70, has been charged with murder, kidnapping and conspiracy in connection with attempted escape by prisoners at San Rafael courthouse on Aug 7, in which Judge Haley, convicts D McClain and W Christmas and J Jackson, brother of convict G L Jackson, were killed; US official links speed of US response to scientists to high professional regard it holds for 14 scientists and to active role some of them play in USSR protesting against repression; lr reptdly voices hope that, in turn, Soviet Govt would allow 'foreign observers' to be present at Soviet trials; US move also viewed as challenge to Soviet authorities to accept concept of open trials; USSR scientists identified