LOS ANGELES, Feb. 26 – The defense in the Tate murder trial today had two psychiatrists prepared to give their opinions about the effects of continued use of LSD, on the human mind.

Charles Manson and three women defendants have been pictured as taking the drug frequently before the Tate-LaBianca killings.

Several more “family” members still were scheduled to appear at the penalty phase of the trial for a jury decision on a sentence of death or life imprisonment. Their testimony, and that of the psychiatrists, could prolong the trial several more weeks.

One Manson follower, Ruth Moorehouse, 18, also known as “Ouish,” startled the jury Thursday when she appeared on the witness stand in the late stages of pregnancy.

“When is the baby due, Ouish?” asked defense lawyer Maxwell Keith.

“Right now,” the girl replied. Miss Moorehouse said her father was a good friend of Manson and (hat when she was 16 he took her to the Spahn Ranch and left here to live with the cult.

Keith asked her if she had ever seen Manson do unusual things.

“Rattlesnakes like him,” she said. “He could play with them.”

Miss Moorehouse was on the witness stand again today and under questioning by Manson’s attorney, Irving Kanarek, she said Manson was at a waterfall several miles from the Spahn Ranch on the night of the Tate slayings.

State witnesses had testified that Manson sent off a band of murderers from the ranch and was waiting for them there that night when they returned.

Deputy District Attorney Vincent Bugliosi cross-examined Miss Moorehouse.

“You will do anything possible to help Charlie Manson and these girls, isn’t that right?” he asked.

“I would help myself,” she said.

“You would murder for them, wouldn’t you?”

“I couldn’t take a life,” she said.

Bugliosi asked why she had engraved an “X” on her forehead.

“It is a sign we’re all going together, that we’re all one.”

Susan Atkins’ lawyer contended at the trial Thursday that the state had agreed not to seek the death penalty for her if she testified before a grand jury. He argued that she had filled her part of the bargain.

Miss Atkins did go before the grand jury and her story led to the indictment of Manson, Patricia Krenwinkel, Charles Watson, Leslie Van Houten, Linda Kasabian and herself.

Miss Atkins later repudiated the grand jury testimony as untrue. Last week she took the witness stand and told a story absolving Manson Of any part in the slayings.

Shinn was seeking to convince the jury that — whatever she did subsequently — she lived up to her pledge to go before the grand jury and that her testimony broke the case.

The district attorney’s representatives said there had been an oral agreement but it was based on the stipulation that she testify “truthfully” before the grand jury.

By JACK V. FOX