A conceptual study of possible collecting systems for use in stratospheric sampling /

Because the use of filters to sample particulate matter suspended in the upper atmosphere has been investigated and has yielded rather disappointing results, an examination of other methods of upper atmospheric sampling is desirable, and this is the aim of the present report. The nature of any radioactive material, and its relation to the size and composition of the suspended particles is of particular interest.

Lead monitoring in the Pilsen Neighborhood /

Based on this new data, the Illinois EPA has requested that the Illinois Attorney General initiate legal action against H. Kramer relative to its contribution to a violation of the lead National Ambient Air Quality Standard.

Monitoreo del plomo en el vecindario de Pilsen /

Based on this new data, the Illinois EPA has requested that the Illinois Attorney General initiate legal action against H. Kramer relative to its contribution to a violation of the lead National Ambient Air Quality Standard.

Analysis of the sample interval and study period used to conduct delay studies at signalized intersections. Final report.

Mode of access: Internet.

How to write an essay,: with sample essays and subjects for essays,

Mode of access: Internet.

Organizing a Chamber of Commerce : a "how to" manual for communities planning to organize a Chamber of Commerce : organization structure, sample bylaws.

"March 1962."

Size of sample study, with particular reference to the Pig survey of the Bureau of Agricultural Economics.

Mode of access: Internet.

On sample size determination; informal report no. 2 to Systems Analysis Division, Chemical Research and Development Laboratories, Edgewood Arsenal, Md., under Contract DA-18-108-CML-7174.

Mode of access: Internet.

Manufacturers' abbreviated guide for age-labeling toys : matching toy characteristics to children's ages.

Mode of access: Internet.

Sample catalog cards; illustrating solutions to problems in descriptive cataloging.

Mode of access: Internet.