Tchekov, Anton Pavlovich

biologic artifact connecting piece of sperm conventional dissociation constant darksiders deka-hertz el bayadh (geryville) Entwistle' gearing gallows-balk gartrell Hennig principle kroehnkite (kr?hnkite) lagotiside Lucibacterium physalia pelagica Poway Grove recent modification sentry-duty shunting speed single-roll cast coater straight ahead motion