LIEUTENANT PEARY'S EXPEDITION

Lieutenant-Colonel James Graham Hojel

Lieutenant, Medical Corps, United States Naval Reserve

The initial observations on the interference phenomenon were made in virus diseases of plants. In 1929, McKinney (1) observed that plants infected by tobacco mosaic virus resisted infection with a variant strain of this virus. Thung (2), in 1931, was apparently the first to study the phenomenon in detail in plants. Numerous examples of interference between plant viruses have been reported subse...

Packable Resin Composites Lieutenant Joseph C . Joyce

Introduction Increased demand by patients and clinicians for esthetic restorations coupled with the public’s concern about mercury have resulted in an escalating use of resin composite materials (1). Resin composite is now often utilized to restore tooth surfaces previously accomplished with silver amalgam. Packable (a.k.a. moldable or condensable) resin composites are the product of vast amoun...

Lieutenant of the men of death.

Expedition Discovers Marine Treasures

An underwater mountain that forms the world’s thirdlargest atoll has some of the richest diversity of marine life ever found in the Caribbean, according to scientists who recently explored the area. The two-week expedition in January encountered new species of fish, seaweed and other ocean life at little-studied Saba Bank Atoll, a coral-crowned seamount 250 kilometers southeast of Puerto Rico i...