Application of a human tumor colony forming assay to new drug screening.

Mode of access: Internet.

Routine testing of samples for radioactivity in mills and assay offices in the United States : a progress report /

"August 1953."

Microbiological requirements and methodology for food in military and federal specifications /

Bibliography: leaf 125.

Illustrated history of the United States mint with short historical sketches and illustrations of the branch mints and assay offices, and a complete description of American coinage ...

Mode of access: Internet.

Chaffers' Handbook to hall marks on gold & silver plate, with revised tables of the annual date letters employed in the assay offices of England, Scotland and Ireland.

"First issued in 1897."

Assessment of risk of human infection in the microbiological laboratory.

Photocopy distributed by Clearinghouse for Federal Scientific and Technical Information. AD 693 258.

Manual of dehydrated culture media and reagants for microbiological and clinical laboratory procedures.

Mode of access: Internet.

Ionization chamber assay of radioactive gases /

Contract No. W-7405-eng-48.

The vitamin directory; a complete, authoritative description and trade listing of all vitamin materials, assay methods and instruments, experimental animals, reference materials and reagents.

Cover-title.

A philosophical and practical essay on the gold and silver mines of Mexico and Peru : containing the nature of the ore, and the manner of working the mines, the qualities and use of quicksilver, the cleansing and refining these metals : with many useful observations concerning the assay of metals, the manner of conveying them to Europe, and remarks on the gold mines in Hungary, and those of Asia and Africa /

No Spanish ed. in: NUC pre-1956, BLC, Sabin, Palau y Dulcet (2nd ed.).

Methods for microbiological and chemical determinations of essential amino acids in proteins and foods /

Cover title.

Standard methods for the examination of dairy products, microbiological and chemical.

Mode of access: Internet.

A tissue enzyme assay for chlorinated hydrocarbon insecticides.

"Project 16030 ELZ; Program element 1BA027."