. True manhood : a manual for young men . glue factories by division, and filling up with limeand sand obtained from the mothers milk. The babygrows stronger; he is soon able to hold up his head,to bear his weight on his feet, to lift playthings withhis hands. How fast the baby grows, we exclaim ;he creeps, he walks, he runs, as his bones increase insize and exchange the cartilage (removed from thecenters) for real bone newly made on the outside. Ossification. Bones are said to ossify when cartilage gives placeto bone. It requires about twelve or fourteen yearsfor this change to take place, so
. True manhood : a manual for young men . glue factories by division, and filling up with limeand sand obtained from the mothers milk. The babygrows stronger; he is soon able to hold up his head,to bear his weight on his feet, to lift playthings withhis hands. How fast the baby grows, we exclaim ;he creeps, he walks, he runs, as his bones increase insize and exchange the cartilage (removed from thecenters) for real bone newly made on the outside. Ossification. Bones are said to ossify when cartilage gives placeto bone. It requires about twelve or fourteen yearsfor this change to take place, sometimes longer;the slower the better; for, with boys as with apples,slow development is most enduring. Bones are notcompletely ossified until a man is from twenty totwenty-five years of age. Perfected bone has remarkable strength. Used as i4o TRUE MANHOOD. a lever it is twenty-two times as strong as sandstone,and twice as strong as box or oak. Bone is the last part of the body to return todust, and skeletons almost never decay, remaining. Fig. XXXVII. The Frame-work. intact for many, many years. If burned, only thecartilage will be destroyed. The mineral part re-mains, and may be crushed to fine dust. The lime TRUE MANHOOD. 141 in bone can, however, be eaten out by certain enamel of teeth is the hardest substance in thebody ; in every hundred parts of them ninety-six areHme leaving only four parts of other matter. Although so strong and enduring, bones are subjectto disease, and are liable to be stunted in growthduring boyhood. Impure air is a source of bone disease. Oxygenmust come freely to the bones down the valley of thestream of the blood, or they will soon smoke and carbonic acid gas will not allowbones to flourish and develop. Improper Diet is a fruitful source of bone disease. Diet that is goodfor the stomach and the liver, is also good for bonebuilding. White flour leads the van of the enemy—bad diet. Whole wheat is captain of the friend
Size: 1033px × 2419px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookidtruemanhoodm, bookyear1888
