Soldiers who are cut off from their food supply may be able to eat grass, leaves and wood with the aid of a chocolate-flavored syrup of germs, according to preliminary tests conducted by Dr. Gustav J. Martin of the Warner Institute for Therapeutic Research in New-York City. The syrup, containing germs of a type that do not cause disease, is said to manufacture various B vitamins in the digestive tract and permits humans to live on hitherto inedible material. If the experiments prove successful, civilians as well as soldiers may be able to obtain a lifetime supply of vitamins from the germ syrup at a cost of only about $2 per person.