Man in a lab uses volumetric pipet to carefully measure liquid from a flask. Physical description: black-and-white negatives, 2.5X3.5m
Woman transfers liquid specimen with a pipet. Physical description: black-and-white negatives, 6X6.5...
Unidentifiable Laboratory Scientist disects and examains tissue under a Fume Hood. Physical descript...
Man places vile into centrifuge. Physical description: black-and-white negatives, 6X6.5m
Man in a lab uses volumetric pipet to carefully measure liquid into a test tube. Physical descriptio...
Laboratory technician is mouth pipetting to transfer a biological fluid from one container to anothe...
Laboratory technician is mouth pipetting to transfer a biological fluid from one container to anothe...
Laboratory technician is mouth pipetting to transfer a biological fluid from one container to anothe...
Laboratory technician is mouth pipetting to transfer a biological fluid from one container to anothe...
Laboratory technician is mouth pipetting to transfer a biological fluid from one container to anothe...
A Laboratory technician works with test tubes and pipetts. Physical description: black-and-white neg...
Man holds a beaker and flask under a fume hood. Physical description: black-and-white negatives, 6X6...
A Laboratory technician works with test tubes and pipetts. Physical description: black-and-white neg...
An unidentified man hold up hand in a sign of measurement. Physical description: black-and-white neg...
Glass pipet being used within a testube containing a gold or yellow liquid Physical description: bla...
Unidentifiable Laboratory Scientist disects and examains tissue under a Fume Hood. Physical descript...
Woman transfers liquid specimen with a pipet. Physical description: black-and-white negatives, 6X6.5...
Unidentifiable Laboratory Scientist disects and examains tissue under a Fume Hood. Physical descript...
Man places vile into centrifuge. Physical description: black-and-white negatives, 6X6.5m
Man in a lab uses volumetric pipet to carefully measure liquid into a test tube. Physical descriptio...
Laboratory technician is mouth pipetting to transfer a biological fluid from one container to anothe...
Laboratory technician is mouth pipetting to transfer a biological fluid from one container to anothe...
Laboratory technician is mouth pipetting to transfer a biological fluid from one container to anothe...
Laboratory technician is mouth pipetting to transfer a biological fluid from one container to anothe...
Laboratory technician is mouth pipetting to transfer a biological fluid from one container to anothe...
A Laboratory technician works with test tubes and pipetts. Physical description: black-and-white neg...
Man holds a beaker and flask under a fume hood. Physical description: black-and-white negatives, 6X6...
A Laboratory technician works with test tubes and pipetts. Physical description: black-and-white neg...
An unidentified man hold up hand in a sign of measurement. Physical description: black-and-white neg...
Glass pipet being used within a testube containing a gold or yellow liquid Physical description: bla...
Unidentifiable Laboratory Scientist disects and examains tissue under a Fume Hood. Physical descript...
Woman transfers liquid specimen with a pipet. Physical description: black-and-white negatives, 6X6.5...
Unidentifiable Laboratory Scientist disects and examains tissue under a Fume Hood. Physical descript...
Man places vile into centrifuge. Physical description: black-and-white negatives, 6X6.5m