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Hans and Zacharias Janssen
Dutch lens grinders, father and son
Produced first compound microscope -
Robert Hooke
English scientist
Looked at a thin slice of cork through a compound microscope
Observed tiny, hollow, roow--like structures
Called these structures 'cells' because they reminded him of the rooms that monks lived in
only saw the outer walls (cell walls) because cork cells are not alive -
Anton van Leeuwenhoek
Dutch fabric merchant and amateur scientist
looked at blood, rain water, scrapings from teeth through a sample microscope (1 lens)
Observed living cells; called some 'animalcules'
some of the small 'animalcules' are now called bacteria -
Matthias Schleiden
German botanist
Viewed plant parts under a microscope
Discovered that plant parts are made of cells -
Theodor Schwann
• German zoologist
• Viewed animal parts under a microscope
• Discovered that animal parts are made of cells -
Rudolph Virchow
• German physician
• Stated that all living cells come only from other living cells