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Letters |
Wrote Letter L-533 of 1716-05-22 to Cornelis Spiering about the scales of a carp that Spiering sent him, using scales to age a fish, eggs in hard roe and sperm in soft roe food for other fishes, shrimp eggs, and the life span of whales and fish |
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Letters |
Wrote Letter L-536 of 1716-06-12 to thank professors Cink, Narez, and Rega for the honorary medal; barley germination and nutrients; again rejects spontaneous generation |
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Letters |
Wrote Letter L-537 of 1716-06-22 to Jan Gerard Kerkherdere about how wheat, barley, beans, peas, rice, buckwheat, and maize become food for animals and discusses Leeuwenhoek's techniques for preparing samples |
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Letters |
Wrote Letter L-538 of 1716-09-17 to Abraham Cornelis van Bleyswyck about his own intestinal ailment and the roles of chyle, gall (bile), and the diaphragm in the digestive process |
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Letters |
Wrote Letter L-540 of 1716-09-28 to Herman Boerhaave about how trees grow and withstand wind; coconut palm wood and nut; he acknowledges previous errors in his observations of coconut tree trunks |
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Letters |
Wrote Letter L-544 of 1716-11-05 to Herman Boerhaave about the size of sperm from rams, cod, and ling, little animals from rain water and soil, and blood in arteries and veins |
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Letters |
Wrote Letter L-545 of 1716-11-17 to Gottfried Leibniz about reproduction, numbers of sperm and seeds, reproductive organs of sheep and ram, fallopian tube too small to let eggs through |
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Letters |
Wrote Letter L-546 of 1716-11-21 to Herman Boerhaave about ram sperm and details of his experimental methods |
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Letters |
Wrote Letter L-547 of 1717-03-02 to Abraham van Bleyswyck about the structure of nerves and the associated fat in the spinal cords of cows and sheep |
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Letters |
Wrote Letter L-548 of 1717-03-06 to the members of the Royal Society tendons and muscle fibres in sheep, flea, ox, honeybee, oyster, and mussel |
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Letters |
Wrote Letter L-549 of 1717-03-06 to the members of the Royal Society about pig brains, apples, and coconuts; blood circulation nourishes; new technique to examine brains; tea and coffee keep the blood thin |
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Letters |
Wrote Letter L-550 of 1717-05-06 to Ewout van Bleiswijk about dragonflies' muscle fibres, compound eyes, and corneal facets, flies, lobster, and crab |
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Letters |
Wrote Letter L-551 of 1717-05-26 to Abraham van Bleyswyck about the structure of nerves and associated blood vessels and membranes, the structure of the spinal cord and brains of a pig, cow, and mouse, and the nerves of a calf, bream, and lamb |
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Letters |
Wrote Letter L-552 of 1717-06-15 to the members of the Royal Society about the muscle fibres of an ox and a flea and the reproduction of fleas |
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Letters |
Wrote Letter L-553 of 1717-07-06 to Antony Cink about how two doctors treated his recent illnesses with saltpeter and opium; saltpeter’s effects on the blood and its efficacy as a drug |
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Letters |
Wrote Letter L-554 of 1717-07-13 to Jan Gerard Kerkherdere about one of his personal ailments, the consequences for the digestion of eating fatty meat, the particles in his own excrement, and the role of chyle and gall during digestion |
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Letters |
Wrote Letter L-556 of 1717-08-19 to Adriaan Swalmius about membranes inside an eggshell, salt crystals from an eggshell, and how birds and oysters produce shells |
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Letters |
Wrote Letter L-557 of 1717-08-26 to Herman Boerhaave, following up on Letter L-546, about a ram's seed balls, vas deferens, and epididymis, millet grains or mustard seeds as units of measurement, sperm compared smaller little animals, and a sperm’s tail |
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Letters |
Wrote Letter L-558 of 1717-09-10 to Frederik Adriaan van Reede about haddock intestines, roach and cod, and how scales determine the age of herring, perch, bream, and cod |
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Letters |
Wrote Letter L-559 of 1717-09-17 to the members of the Royal Society about his own skin's fat globules and sweat ducts, holes in his finger nails, sweat ducts in humans and in cow teats, and how lice and fleas use sweat ducts to obtain their food |
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Letters |
Wrote Letter L-560 of 1717-10-08 to the members of the Royal Society about Pareira Brava root and the effect of salt particles from it upon blood, starch grains from the membranes of the root, and the roots of “China” and “Irias" |
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Letters |
Wrote Letter L-561 of 1717-10-22 to the members of the Royal Society about the brain of a cod, the nerves of cod and haddock, and the spinal cord of haddock |
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Letters |
Wrote Letter L-562 of 1717-11-20 to the members of the Royal Society about tendons and nerves of sheep, lamb, cow, and ox; his last letter to the Royal Society; expresses his gratitude for being elected a fellow and for Philosophical Transactions |
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Letters |
Wrote Letter L-563 of 1717-12-08 to Charles VI, Holy Roman emperor, as the dedication for Send-Brieven |
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Letters |
Wrote Letter L-564 of 1718-11-28 to Francesco Corner, a cover letter for Epistolae Physiologicae |
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Letters |
Wrote Letter L-565 of 1720-01-09 to the members of the Royal Society about muscle fibres and membranes of a cow, mites on the flesh of a whale, and the nerves around the muscle fibres and tendons of a cow |
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Letters |
Wrote Letter L-566 of 1720-11-20 to the members of the Royal Society about bone membrane and the canals in bone, the cell layers and blood vessels in the bone membrane, and bone from the rib of a cow |
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Letters |
Wrote Letter L-567 of 1721-01-15 to members of the Royal Society about the stomata of the leaves of boxwood, the number of them, and the down on the skin of a peach and a quince |
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Letters |
Wrote Letter L-568 of 1721-01-24 to the members of the Royal Society about vessels in wood from Ambon (Indonesia), oakwood, and pinewood, the muscle fibres of a cow, a whale, and a mouse, and the structure of a red blood cell |
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Letters |
Wrote Letter L-569 of 1721-04-11 to the members of the Royal Society about how flesh fibers are nourished by the blood vessels, this time in fish |
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Letters |
Wrote Letter L-570 of 1721-06-27 to the members of the Royal Society about finally discovering the little holes in the membranes of beans and peas and about the little vessels in seed membranes |
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Letters |
Wrote Letter L-572 of 1722-04-21 to the members of the Royal Society about the muscular fibres of different animals and whether iron becomes magnetic over time |
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Letters |
Wrote Letter L-573 of 1722-05-01 to the members of the Royal Society about the structure of fat particles in sheep, lamb, flatfish, and perch |
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Letters |
Wrote Letter L-574 of 1722-05-01 to James Jurin, a cover letter to Letter L-573, asking for support for his observations of hermaphroditic animals |
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Letters |
Wrote Letter L-576 of 1722-06-13 to the members of the Royal Society about the reproductive organs of a ewe and a fetus from it |
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Letters |
Wrote Letter L-577 of 1722-06-13 to James Jurin, a cover letter for Letter L-576, expressing doubts that inoculations protect against smallpox |
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