"The Catholic slogan that 'birth control is against God's law' is the most immoral creed over proposed by man," Karl Sax, professor of Botany, declared in an interview last night defending the bill now before the State Legislature which would enable Bay State physicians to prescribe contraceptives for married women.

"The Church's own stand represents a greater threat to Catholicism than Communism does," the vice-president of the Massachusetts Parenthood League said.

In further defense of the bill, Carle C. Zimmerman, associate professor of Sociology, asserted that "Western society has always used birth control, so it is useless to argue about it. Everybody goes up to the State House to fight birth control, and then goes right home and practices it."

Massachusetts and Connecticut, the only two states which still prohibit the dissemination of information on the use of contraceptives, were tied for third lowest birth rate in the country in the five-year period 1936 to 1940, he pointed out. Zimmerman termed the present prohibitive law "not only immoral but cruel."

"The bill would have no effect on the birth rate," Professor Sax said, "since 90 percent of the married couples in the Greater Boston area already use some form of contraceptive."