Nails On The Yogi's 'Menu'.Dining off a handful of nails-yes, he really eats them - is Mr. L.S. Rao, 61-year-old Indian Yogi, who is in this country to present his own philisophy on life. Nails aren't the only thing this bearded man digests. On occasions his 'dishes' have included such 'tasty' items as tin-tacks, gramophone neadles and glass. And to wash it down he often has a drink of nitric acid. It's all a case of spirit over matter.Mr. Rao is going to America soon, where he said he hoped to convert President Truman to Yoga. Then he goes on to Russia, where he has been asked to play Rasput in a film. In Russia he wants to meet Stalin. December 20, 1951.