Doo Doo wasn't trying to run away from home. Doc and Fern were great humans, cat people to the core. But Doo Doo has a feral streak, and a sudden impulse sends him into the wilds of the city's Glen Canyon, and then far beyond. Now he is very lost, but not so lost that he doesn't know what he wants more than anything. It's the same thing we all want-love and home-but Doo Doo needs to get there on four paws. And having his new best friend, a subway cat named Rass, tagging along doesn't make it any easier. Doo Doo's 6,000 mile odyssey across America -by jet, bus, big rig, ferry, Caddy, Cessna...

The Third Annual Symposium on Health Sciences attracted over 400 scientists from 15 countries. It was held at the National Academy of Sciences in Washington, D.C. The theme of this meeting was "Thymic Hormones and Lymphokines: Basic Chem- istry and Clinical Applications." The meeting emphasized the state of the art with regard to chemistry, mech- anism of action, and clinical applications of thymic hormones and lymphokines. In addition to the five sessions, the chairmen of each session were asked to prepare a synthesis and overview of each of the sessions. Some of the chairmen used this time...