Modifications of two palynological processing techniques
Subtitle: ultrasonic processing and early-stage sieving
By: by Thomas P. Sheehan
Contributors: Geological Survey (U.S.)
Series: Open-file report -- 92-564; U.S. Geological Survey open-file report -- 92-564
Publisher: Dept. of the Interior, U.S. Geological Survey; Books and Open-File Reports Section, distributor
Published: 1992
Place of publication: [Reston, VA]; [Denver, Colo
Language: eng
Format: Microform
Subjects: Palynology; Ultrasonic cleaning; Molecular sieves
Other titles: Ultrasonic processing and early-stage sieving
Notes: Cover title

Distributed to depository libraries in microfiche

Shipping list no.: 93-0914-M

Includes bibliographical references (leaf 7)

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1993] 1 microfiche : negative