Hygienic physiology : with special reference to the use of alcoholic drinks and narcotics / by Joel Dorman Steele.

  • Steele, Joel Dorman, 1836-1886.
Date:
[1888], ©1888
Catalogue details

Licence: Public Domain Mark

Credit: Hygienic physiology : with special reference to the use of alcoholic drinks and narcotics / by Joel Dorman Steele. 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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    the bones of children are tough, are not readily fract- ured, and when broken easily heal again; * while those of elderly people are liable to fracture, and do not quickly unite. The Structure of the Bones. — When a bone is sawed lengthwise, it is found to be a compact shell Eig. 3 A thin slice of Bone, highly magnified, showing the taotnce, the tiny tubes (canali euli) radiating from them, and four Haversian canals, three seen crosswise and one lengthwise. filled with a spongy substance. This filling increases in quantity, and becomes more porous at the ends of the bone, thus giving greater size to form a strong joint, while the solid portion increases near the so many jars, retain these unossified portions (epiphyses) nearly through life; while alligators and turtles, whose position is sprawling, and whose motions are measured, do not have them at all.—Leidy. * This is only one of the many illustrations of the Infinite care that watches over helpless infancy, until knowledge and ability are acquired to meet the perils of life.