A sympathetic, appreciative biography of Dr. Joseph Goldberger, whose contributions to the field of public health made him outstanding. From the lower East Side of New York City, son of Hungarian immigrants, he, with all the family's help, managed to pursue his medical studies with the same concentration, that later, he traced diseases, their cure, treatment, and prevention. Not attracted by private practice, he took his chance in U. S. Public Health Service and worked with signal effort in the eradication of yellow fever, typhoid, dengue, worms, measles, pellagra. He traveled the country over, brooked no backsliding, lack of interest and roused community feeling about proper diagnosis, quarantine, strict official health procedure. He married a Christian wife whose understanding and help supported him in his strenuous attacks on the problems with which he was presented, was often his own guinea pig, and died, himself, of cancer. An absorbing story, worthy of its subject and of medical pioneering.