This thesis is a discussion of the major bee diseases
found in Oregon with notes on minor ailments of bees and
on diseases not yet present followed by a history of the
introduction and spread of the more important diseases,
a history of bee legislation in Oregon and a discussion...
The question about the quality of Chinese silk has always
been of interest not only to the manufacturer and consumers in
China but also to people who are wearing and dealing with silk
all over the world. Judging of silk fabrics by means of the feel
and on the basis...
The object of this study was to compare the efficiency of a Hydro-Vac cooler with that of a 29 x 16-1/2 inch tubular surface cooler, as well as with that of two other coolers (tub cooler and sprinkler cooler). The cooling efficiency of a Hydro-Vac cooler was slightly lower than...