Letter, from Antoni van Leeuwenhoek to the Royal Society, dated at Delft Signed autograph Observations of the corn-weevel and corn-moth; pupation of the corn-moth; eggs in the ovary of the female moth and how the eggs were laid; how to remove moths from corn-lofts; structure of the egg shell; breeding of caterpillars and butterflies; examination of the insect calander; observations of lice in the corn-lofts; micro-organisms in rain water; black-flies in blossom; maggots in cheese 15 original figures no longer exist; engraved figure no 14 for publication is attached English translation is EL/L2/34 Transcribed and translated in 'Alle de brieven van Antoni van Leeuwenhoek', edited, illustrated and annotated by Committee of Dutch Scientists, vol 8, p 273 7 March 1692