3-Tier Test Tube Stand for 36 Tubes, 0.75" Slots Rod Size_23.6" Tube-mounting carrier pairs with an

Tube-mounting carrier pairs with an electric clinostat for rotating small specimens through altered-orientation conditions in heliotropism and geotropism experiments

Mounted plant cell model exposes cell wall

V-location formed by two hexagonal bars and a hexagonal carriage prevents sag along this 1

and chemistry heating

Laminated 11 by 17-inch color-coded geology time scale poster maps eons

3-Tier Test Tube Stand for 36 Tubes, 0.75" Slots Rod Size_23.6" Tube-mounting carrier pairs with anThree tier test tube stand with 36 slots sized at three quarters of an inch, providing clear visibility of tube contents across stacked rows during experiments and storage.