turn of the century scientist looking at a chemical and taking notes 4k
turn of the century scientist taking notes 4k
closeup turn of the century scientist taking notes 4k
Close-up of chemist using microscope and taking notes
Scientist studying sample in modern research facility
Chemist woman taking dna liquid from test tube with micropipette
Chemist scientist african woman taking dna solution from test tube
turn of the century scientist using a microscope 4k
Senior Caucasian pharmacist taking old-fashioned container with medicine from shelf and talking to customer. 19th century drugstore, retro, pharmaceutical museum. Chemical terms written on bottles.
doctor taking notes
Doctor taking notes on a clipboard from a modern scan system
turn of the century scientist moves a lamp closer to the microscope 4k