W.

Weinschenk and thermal metamorphism, 132,

149.

Weismaun, encystment of protoplasm, 68; length of life and

somatic cells, 96; origin of death, 83; tendency to early

reproductiveness, 98.

Wilson, C. T. R., visualised alpha rays, 218.

Winchell, progressive changes of matter not eternal, 302.

Wood, R. W., on photographic reversal, 211.

The Birth-Time of the World and Other Scientific Essays · 第 92 / 93 题