Judges of the 9th Circuit Court of Appeals will convene a special session Friday in Boise to celebrate the memory of the late Senior Circuit Judge Thomas G. Nelson of Boise, who died in May at the age of 74. The session will be held in the Capitol Auditorium at 2 p.m. and is open to the public; among those scheduled to speak are 9th Circuit Judges Sidney R. Thomas of Billings, Mont.; Richard C. Tallman of Seattle; Barry Silverman of Phoenix; and Randy Smith of Pocatello; along with Idaho Supreme Court Justice Joel Horton, Boise attorney John Rosholt, and two of Nelson's sons, Kyle Nelson and Dr. Hal T. Nelson.