Following this , Marcello Malpighi , Hooke and two other early investigators associated with the Royal Society , Nehemiah Grew and Antoine van Leeuwenhoek were fortunate to have a virtually untried tool in their hands as they began their investigations .
Then Marcello Malpighi , Hooke , Nehemiah Grew and Antonie van Leeuwenhoek had a virtually untried tool in their hands as they began their investigations .