Functions and development of a tropical marine laboratory.

The Fisher Improved Electro Analyzer facilitates since it is a self-contained unit that operates directly rapid quantitative determinations of metallic ele-from a 110 volt. 60 cycle, A.C. line. This instruments in solutions. It eliminates the need for ex-ment is also an efficient source of power for elec-pensive, cumbersome motor generators and rheostats, trolytic polishing, charging storage batteries, electro-_ plating and similar applications. The Fisher Electro Analyzer will make two similar determinations simultaneously. It is equipped so that the potential at the electrodes can be varied to meet the requirements of various determinations. The potentials at the electrodes cannot however-be varied independently. The bakelite panel of the Electro Analyzer is engraved and filled with permanent white. The two sides adjacent to the panel also are of bakelite to prevent damage to the case by fumes and spattering. Inputs to the electrode systems can be varied from zero to 50 watts (a maximum of eight volts and six amperes), thus providing ample range so that the optimum current for each particular separation is available. In revising this standard text of elementary human anatomy, Dr. Lazier has I NEW (3rd) added a wealth of important new material. For example: The chapter on EDITION' Bones and Joints has been changed to incorporate new material on the vertebral column, the spine and the joints. More adequate coverage is given to the discussion of the ribs, the. skull and the arm bones. In addition, Dr. Lazier completely rewrote and extensively expanded the chapter on the Muscles. Other improvements include the thorough revision and expansion of the material on Tissues, a rearrangement of the chapter on Circulation, expansion of material on Epithelium and Skin, and modification of the chapters on Nervous System and Sense Organs. 64 new illustrations have been included to make a total of 303, 13 of them in color. Saunders has just published the New (18th) Edition of this famous pocket medi-NEW (18th) cal dictionary. The vast activities of medical science during the past four EDITION! years have brought forth a tremendous number of new words. An up-to-date medical dictionary, such as this is, is consequently needed by all concerned with medicine or its allied sciences. In this New (18th) Edition, new diseases and new diagnostic methods are explained, definitions are given of words in such newly explored fields as mycology, vitaminology, endocrinology and tropical and parasitic diseases. There are also a great many …