Oral pathology and practice : a text-book for the use of students in dental colleges and a hand-book for dental practitioners / by W.C. Barrett.

  • Barrett, W. C. (William Cary), 1834-1903.
Date:
1901
Catalogue details

Licence: Public Domain Mark

Credit: Oral pathology and practice : a text-book for the use of students in dental colleges and a hand-book for dental practitioners / by W.C. Barrett. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    tissues which it contains. The Carnivora feed upon the animal kingdom, or matter that has been twice organized; first into the vegetable and then into the animal. Tlieir digestive apparatus is comparatively simple, because of the concentrated nature of their food. The Omnivora, to which division man belongs, can subsist upon either, and their digestive organs, while more com- plex than those of the Carnivora, are considerably modified from those of the Graminivora. Fig. I. m»*»4 Different Forms of Bacteria. (After Miller.) a, Micrococci, b, Diplococci. c, Streptococci, d, Bacilli, e, Vibriones. /, Spirillae. o-, Clos- tridium, h, Spirochetae. z, Leptothrix. Only organisms that belong to the vegetable kingdom have the power of living upon inorganic, or unorganized, matter. Cer- tain of the vegetable fungi are unable even to do this, but must have the food organized before they can assimilate it, as must all members of the animal kingdom. Inorganic matter is that which exists as it was first created. This earth, when it left the hands of its Creator, must have consisted exclusively of inorganic matter. When, in due process of time, the first organic cell was created, and endowed with the power to