The Royal Society read and discussed part of Letter L-187 about embryo plants in seeds

May 14, 1687

Birch, History, vol IV, p. 534, 4 May 1687 (O.S.) in London:

Part of a letter of Mr. LEEWENHOECK of May 9, 1687, N.S. was read, containing some microscopical observations on the structure or constituent parts of the mealy pabulum of plants, included together with the embryo plants in the husk of the seed. This he had found in the kernel of a medlar-stone to consist of nothing else but conglomerated globules. The rest of this letter was ordered to be translated.

Dr. PITT said, that having taken the yolk of an egg before it was covered with the white, he had frequently seen the cicatricula therein.