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#66 Bufo woodhousii   Harper Well, Imperial Co., Calif.
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68 Rana pipiens       El Centro, [[dittos under Imperial Co., Calif]]
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70 Bufo woodhousii [[dittos under El Centro, Imperial Co., Calif]]
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April 16, 1929. Tuesday,

  For toads taken in early morning hours of the 16th, see under the 15th.
  We left El Centro and went south to Mexicali, Mexico, about 20 miles south of El Centro. Along the banks of New River which flows northward towards Salton Sea, we obtained 5 toads, [[underline]] B. woodhousii [[/underline]]. They were sitting along the bank with 3 feet or so of the water in the shade of mesquite. They jumped into the water + were seen no more when 

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disturbed. The water was swift and very muddy and dirty. It carries the sewage of Mexicali. The temperature in the shade was 102 F.
  This area is a flat one, and part of the Imperial Valley. Probably the toads all came into this area from the Colorado by way of the streams which formed Salton Sea.
  Proceeding eastward over the desert towards Yuma, we saw little alive. We stopped at the Sand Dunes which stretch for many miles north and south. Here [[underline]] Uma [[/underline]] notata was abundant. There is only very scant vegetation on these dunes [[strikethrough]] mostly being [[/strikethrough]] the greatest part of them being drifting sand. The [[underline]] Umas [[/underline]] usually are found in the vicinity of a small bush and dash away fifty to seventy five feet when disturbed. The smaller ones show [[strikethrough]] little tend- [[/strikethrough]] much less tendency to bury in the sand than the old ones. The ones wich do go in simply dash ahead and like a flash shoot into the sand. Kranzthor said the large one he caught alive (Photo) made a ripple some distance after it had shot