scholarly journals Regional geologic map of San Andreas and related faults in eastern San Gabriel Mountains, San Bernardino Mountains, western San Jacinto Mountains and vicinity, Los Angeles, San Bernardino, and Riverside Counties, California

1971 ◽  
Author(s):  
T.W. Dibblee
Author(s):  
Philip Goff

The message that Grace Fuller had awaited for years arrived at her cabin in the San Bernardino mountains. Here, she sought relief from the Southern California heat that aggravated her tuberculosis, for which there was no easy treatment in 1916. Her husband, Charles, had gone to church alone in Los Angeles to hear Paul Rader, the boxer-turned-evangelist. There, Charles converted to fundamental Christianity. Unable to contain his excitement, he informed her of his call to missions, probably Africa. Certain the heat would do her in, Grace's gratitude for Charles's religious experience was tempered by the idea of being a missionary. She thought to herseif, “I'll go with him anywhere in the world, but oh, my goodness, I hope it isn't to a hotclimate!”


2007 ◽  
Vol 7 ◽  
pp. 98-109 ◽  
Author(s):  
Andrzej Bytnerowicz ◽  
Michael Arbaugh ◽  
Susan Schilling ◽  
Witold Fraczek ◽  
Diane Alexander ◽  
...  

Since the mid-1950s, native pines in the San Bernardino Mountains (SBM) in southern California have shown symptoms of decline. Initial studies in 1963 showed that ozone (O3) generated in the upwind Los Angeles Basin was responsible for the injury and decline of sensitive trees. Ambient O3decreased significantly by the mid-1990s, resulting in decreased O3injury and improved tree growth. Increased growth of trees may also be attributed to elevated atmospheric nitrogen (N) deposition. Since most of the N deposition to mixed conifer forest stands in the SBM results from dry deposition of nitric acid vapor (HNO3) and ammonia (NH3), characterization of spatial and temporal distribution of these two pollutants has become essential. Although maximum daytime O3concentrations over last 40 years have significantly decreased (~3-fold), seasonal means have been reduced much less (~1.5-fold), with 2-week long means occasionally exceeding 100 ppb in the western part of the range. In the same area, significantly elevated concentrations of HNO3and NH3, up to 17.5 and 18.5 μg/m3as 2-week averages, respectively, have been determined. Elevated levels of O3and increased N deposition together with long-term drought predispose the SBM forests to massive bark beetle attacks making them susceptible to catastrophic fires.


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