The design of the Sherman Fairchild Center for the Life Sciences at Columbia University emphasizes the lightness necessitated by the building's placement on an existing five-story podium structure. (Author/MLF)

The author describes the writing skills lab program in her junior high school. (DS)

Describes some of the atomic age memorabilia which are gathered in an exhibit at the National Museum of History and Technology. (CP)

Presented is a laboratory exercise that utilizes the natural yeast carbonation method of making homemade root beer to study fermentation and the effect of variables upon the fermentation process. There are photographs, a sample data sheet, and procedural hints included. (Author/MA)

A primary responsibility of field environmental health workers is evaluation of individual sewage disposal system sites. The authors of this article developed a practical, accurate, and inexpensive measurement device for obtaining reliable percolation test results. Directions for the construction and use of the device are detailed. Drawings…

Describes the operation of the nitrogen laser-pumped dye laser, and the continuous wave (CW) dye laser. (SL)

Describes a method of plotting the E and C parameters of a series of acids in order to facilitate the comparative discussion of the relative strengths of the series of acids. (SL)

Describes a method of converting line widths from frequency units to wavelength units utilizing only the visualization of a spectral lineshape and algebra. (SL)

Discusses selected bioinorganic aspects of carbonic anhydrase and describes experiments that will reinforce the students' understanding of the presence and essential role that metal ions have in some biological systems. (SL)

Describes an experiment for second year students designed to illustrate lectures devoted to electrochemistry and thermodynamics. (SL)

Discusses the state of the art in the field of utilizing perfluoropolyethers in the creation of "clean" vacuums, when the term "clean" vacuum defines one that does not contain contaminates which interfere with the process to be carried out in the vacuum. (SL)

Describes an experimental arrangement for investigating optical barrier penetration. (SL)

Believing that interpreting for a foreigner is one of the most likely uses to which a Hauptschule student will put his knowledge of English, the author pleads for exercises in interpreting. A teaching unit is sketched which utilizes the lab. (Text is in German.) (IFS/WGA)

Portions of Mendoza-Harrell's article, which is a rebuttal of an earlier article by Allen, are mentioned and criticized. Allen's earlier article discussed the efficacy of language laboratories and proposed student use of cassette recorders. (RM)

Describes a simple activity designed to show the effects of leaching and evaporation on salts in the soil. (CP)