Summer set lip to earth's bosom bare;
And left the flushed print in a poppy there:
Like a yawn of fire from the grass it came,
And the fanning wind puffed it to flapping flame.
Bio: Georg Jakob Christof Joos was a German experimental physicist. He wrote Lehrbuch der theoretischen Physik, first published in 1932 and one of the most influential theoretical physics textbooks of the 20th Century.