C. G. Borland Station Island 19 Johnston Atoll Acarina Argasidae: litter and nests Thrombiculidae - sev. spp. Cbeyletidae Myobiidae, Myocoptidae - on Mus m. Acaridae Oribatoidea - sev. spp. Analgesidae Proctopbyllodidae ------- on birds Dermoglyplidae Pterolicibidae Spiders: sev spp. The Acona were collected from bird nests run through the Berlese funnel. The above list plus a list of Mammals - Mus musculus (very numerous, House cat-2, Dog -1 was sent to D.T.C. in the late afternoon. During the morning Ken made observations on Brown Boobies (nesting). I also collected ectoparasites from an immature (flying) Sooty Tern whose Wing was broken. No nasal mites were found but feather mites and Mallophags were taken. During the afternoon we banded more Brown Boobies (3) and 4 Frigatebirds and masked none nests of known banded birds. The Red-tailed Tropicbird nests were checked but no new individuals were found. After supper Ken Wilz opened more # 5 bands and # 3 bands for tonight. Before dark we had a very light rain which only lasted for a few minutes. When completely dark (9 pm) we made our way to the East end and banded the following before 11:10: Wedge-tailed Shearwaters - 100, Adult Sooty Terns - 100, and Immature Sooty Terns -100.