Depending upon the conditions, either nucleation or growth may be predominant over the other, and as a result, crystals with different sizes and shapes are obtained (Control of crystal size and shape constitutes one of the main challenges in industrial manufacturing, such as for pharmaceuticals).
For the region, see San Fernando Valley. San Fernando is a city located in the San Fernando Valley, in the northwestern region of Los Angeles County, California. It is completely surrounded by the City of Los Angeles.
San Fernando Library opened in November 1914 as a branch of the Los Angeles County Free Library. This library, the first public library in the mainly agricultural San Fernando Valley, found its home in the Industrial Arts building of the San Fernando Union High School located at 130 North Brand Blvd. In the first year, 1,849 books were circulated to 156 borrowers.