Letter, from Antoni van Leeuwenhoek to Thomas Gale, dated at Delft Gives thanks for being elected to the Fellowship; further observations of organisms in vine branches EL/L1/54 for summary of letter Transcribed and translated in 'Alle de brieven van Antoni van Leeuwenhoek', edited, illustrated and annotated by Committee of Dutch Scientists, vol 3, p 229 English extract printed in 'Philosophical Transactions', vol 17, no 196, p 594 13 May 1680