WHO YA GONNA CALL MED SERVICE! Scattered through the galaxy are thousands of worlds colonized by humans. Many have native microbes dangerous to the human immigr

His work was healing the sick-but this planet was already dead!Calhoun regarded the communicator with something like exasperation as his taped voice repeated a

Roving through the uncharted vastness of deep space, Med Serviceman Calhoun of the Interplanetary Medical Service brings his mission of healing to isolated colo

The Jack Cade Rebellion of 1450 was an uprising of the commons of England—most of whom were from Kent, Norfolk, and Essex—that culminated in a battle on Lon

A collection of the trend-setting stories from "the Dean of Science Fiction" which opened and explored such topics as first contact with aliens, the Internet, t