Glass /

Includes index.

Die Kunsterzeugnisse aus Thon und Glas : eine Übersicht ihrer technischen und künstlerischen Entwickelung vom frühen Mittelalter bis zur Gegenwart /

Includes index.

China, silver and pottery.

Mode of access: Internet.

Old glass paperweights, their art, construction, and distinguishing features,

Illustrated t.-p. in color.

Glass from the Corning museum of glass : a guide to the collections.

Map on lining-papers.

American glass paperweights,

Mode of access: Internet.

Histoire de l'art de la verrerie dans l'antiquité,

Mode of access: Internet.

Rare English glasses of the XVII & XVIII centuries,

"Commemorative glass, by Sir John S. Risley": p. [155]-167.

The glass collector; a guide to old English glass,

Plates at end; description of each plate on verso of preceding leaf.

Industry wage study. Appendix A-W. Job descriptions for wage studies.

A. Metalworking.--B. Mining.--C. Apparel.--D. Electric light and power and warehousing and storage.--E. Structural clay products.--F. Services.--G. Retail trade.--H. Footwear.--I. Bakeries.--J. Tobacco.--K. Paper and allied products.--L. Textiles.--M. Chemicals.--N. Furniture.--O. Candy and chocolates.--P. Leather tanning, currying and finishing.--Q. Meat products.--R. Gas utilities.--S. Wholesale drugs.--T. Glassware.--U. Mechanical rubber goods.--V. Copper alloying, rolling and drawing.--W. Lumber.

Hearings before the Committee on Finance, United States Senate, Sixty-seventh Congress, first session, on the proposed Tariff act of 1921 (H. R. 7456) ... 1922.

Hearings held: July 25-Aug. 10, 1921. (Pt.1)

Sodium hypochlorite sterilization of culture medium in micropropagation of Gerbera hybrida cv. Essandre.

Micropropagation requires controlling contamination that might compromise the success of the process. Thermal sterilization is traditionally used; however, costs deriving from equipment acquisition and maintenance render this technique costly. With the purpose of finding an alternative to thermal sterilization, this research aimed at assessing the efficiency and ideal concentration of sodium hypochlorite for sterilization of culture media and glassware used during rooting of micropropagated Gerbera hybrida cv. Essandre. Two experiments were carried out. In the first one, treatments consisted of control I (no sterilization), control II (thermal sterilization), and total active chlorine concentrations of 0.0005, 0.001, 0.002 and 0.003%. In the second experiment, based on the results observed in the first experiment, treatments consisted of control I (thermal sterilization) and II (chemical sterilization), and total active chlorine concentrations of 0.002, 0.0025 and 0.003%. Plant behavior was assessed based on the length of aerial part and roots, number of roots, and dry biomass of plants. Results showed that the addition of an active chlorine concentration of 0.003% to culture media provided total control of contaminants, and there were no significant differences regarding the variables analyzed between plants obtained with thermal sterilization and with sodium hypochlorite sterilization. Thus, chemical sterilization can be used as a replacement for thermal sterilization of nutrition media for rooting of gerbera in vitro.