You can return items to the Front Desk or drop off in the book slot on the Northwest corner of the library next to the staff entrance. You can also return them to the Library's bin in the HMSC mailroom. If you are in Corvallis or Bend, you can return Guin items at those libraries. Items also may be returned by mail or delivery service to:

GUIN LIBRARY
HATFIELD MARINE SCIENCE CTR
OREGON STATE UNIVERSITY
2030 SE MARINE SCIENCE DR
NEWPORT  OR  97365-5296  USA