. Human physiology. 1*0071. It is trans-lucent ; slightly opaque; very frothy; and ultimately deposits a ne-bulous sediment. Even in the purest saliva there are always found)nixed a few epithelial cells, derived from the mucous lining of themouth, or from the excretory ducts of the secreting glands. It usuallycontains free alkali: in rare cases, during meals. Professor Schultz,*of Berlin, found it acid; and during fasting, it is occasionally ,^ indeed, affirms, that it is acid whilst fasting; but becomesalkaline during eating,—the alkaline character disappearing, at times,
. Human physiology. 1*0071. It is trans-lucent ; slightly opaque; very frothy; and ultimately deposits a ne-bulous sediment. Even in the purest saliva there are always found)nixed a few epithelial cells, derived from the mucous lining of themouth, or from the excretory ducts of the secreting glands. It usuallycontains free alkali: in rare cases, during meals. Professor Schultz,*of Berlin, found it acid; and during fasting, it is occasionally ,^ indeed, affirms, that it is acid whilst fasting; but becomesalkaline during eating,—the alkaline character disappearing, at times, Page 77. 2 Gazette Med., 1853, No. 7,11, 22 and 23 ; and Scherer, in Canstatts Jaliresbericht,1853, S. 118. * Lehrbuch der Physiologisclien Chemie, ii. 14, Leipz., 1850; or Amer. edit, of translation by Dr. R. E. Rogers, i. 415, Philad., 1855. ?• Beckers Wissenschaftliclie Annalen, B. ii. H. i. § 32, 1835. ^ Rullier and Raige-Delorme, art. Digestion, Diet, de Medecine, 2de edit., x. 300,Paris, Lobules of the Parotid Gland, in the Em-bryo of the Sheep. 522 SECRETION
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