An evaluation was made of media and tests used for differentiating nonfermenting gram-negative bacteria encountered in medical bacteriology in order to determine those diagnostic procedures most useful in identifying these bacteria. The organisms examined included Alcaligenes faecalis, A. odorans var. viridans, Moraxella duplex (Mima polymorpha var. oxidans), Acinetobacter anitratum (Herellea v...

We conducted a series of column experiments on tailing heap samples from the Picacho mine in California to determine ability native Gram-negative bacteria, Alcaligenes faecalis, leach gold. To mimic leaching using our technique, unprocessed and unsorted tailings mixed grain sizes were placed into columns leached for three weeks with four treatments: (1) deionized water, (2) (3) NaCN by bacteria...

A total of 432 bacterial isolates from washed and unwashed eggs, egg-washer surfaces, and washwaters from five egg-grading plants in Maryland and southeastern Pennsylvania were classified. Counts on equipment surfaces showed considerable variation from plant to plant, reflecting care used in cleaning. Unwashed eggs had a higher percentage of gram-positive cocci (71%), and isolates included Stre...