Word: cells
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Dates: during 1920-1929
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...just been placed in the Fogg Art Museum. Among the prints shown are great masterpieces in engraving including Pollainole's Battle of the Nudes, Mantegna's Virgin and Child, and Battle of the Lea Gods; Albrecht Durer's Melancholia, Knight of Death, Adam and Eve, St. Gerome in his Cell; Rembrandt's Three Trees, and Three Crosses; and the Black Lion Wharf, and Fiddler; by Whistler. A group of old engraver's tools serve to make clearer the technical processes, and to make the exhibition more interesting...
...dominant view among biologists today, backed by much exact microscopic research into the composition of cells, in the laboratories of such men as Profs. Clarence MeClung, of the University of Pennsylvania, Michael F. Guyer, of the University of Wisconsin, and T. H. Morgan and Edmund B. Wilson, of Columbia, rests on strictly objective data. They say there is a special chromosome (chromosomes are minute bodies of constant number and appearance for each species of plant or animal which appear in the cells during cell-division) called the X-or accessory chromosome, which is found in half the spermatozoa of male...
Alich's theory is somewhat supplemental to the established one, and his data have been submitted to the French Academy. He objects to the idea that the origin of sex differences is to be found in differences in the male cells only, and claims that both the spermatozoon and the ovum have activating " microcellules." These seek their complement in the other sex cell, but if the male micro-cellules preponderate in number over the female the result will be a male embryo, and vice versa. But Alich also believes that various other factors affect this potential energy...
...cells in normal health, he believes, maintain an equilibrium between positive and negative electric charges localized in certain parts of the cell. When cells are exposed to constant irritation, the positive charge increases, destroying the balance, and stimulating overrapid cell reproduction. These cancerous cells may become detached and " run wild" through the lymphatic system, perhaps starting cancerous growths in remote parts of the body...
...Butts experimented with a galvanometer and an electric circuit on nearly 200 pairs of rats, one cancerous, the other healthy. The cancer tissue acted exactly like the positive pole, and the normal rat, the negative, in an ordinary dry-cell circuit He proved that cancerous tissue has an excess of positive charge which may be neutralized by the application of an equal negative charge. This explains why X-ray and radium treatment, in which the alpha or positive rays are screened off by a lead shield, while the beta and gamma rays (negative) are allowed to reach the diseased tissue...