... names including "Princeton Mouse Recordkeeping Pro- gram"). To receive further information, contact Dr. Lee M. Silver, Depart- ment of Molecular Biology, Princeton University, Princeton, ... 1-609-258-3345). Preface Publication of a Guide to Techniques in Mouse Development is timely in view of the already enormous and rapidly growing interest in the mouse as an experimental organism. ... route of administration. Most inject- able anesthetics are administered to mice by the intraperitoneal route. Absorption into the circulation is slow compared to intravenous adminis- tration,...