For the sake of experiment, London physiologists T. S. P. Strangeways and H. B. Fell cracked open several hatching eggs (64 to 72 hours incubation*) and scooped out the eyes of the unborn chicks. These eyes they placed in a glass dish which contained blood plasma and extract of embryonic fowl tissue, a viscid fluid. The tiny eyes dreamily bobbed about in this sticky medium, grew in "a surprisingly normal way," gave the horrible semblance of blinking at the experimenters who watched them last week.
<footnote>*Chicks hatch out after 21 days nesting.</footnote>
...
To continue reading:
or
Log-In
