L Shaped Spreader
Catalogue No. 4012270
This sterile, smooth spreader, made of Polystyrene, enables even spreading of liquid samples across the surface of a jar plate without grouping and cutting the medium.
This sterile, smooth spreader, made of Polystyrene, enables even spreading of liquid samples across the surface of a jar plate without grouping and cutting the medium.
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Use to measure transpiration, without breakage. Only one glass component (the capillary tube) and is mounted on strong backing plate. It consists of a capillary tube with millimetre scale connected via three way tap to a syringe. The cut shoot is connected to the third outlet. It can also be used to measure humidity by connecting a porous pot to the third outlet.
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Comprises a horizontal glass tube with one end vertical to take a plant shoot and the other end connected by rubber tubing to narrow bore glass tube with a scale. A vertical limb on the tube is connected to a thistle funnel by rubber tubing fitted with a spring clip. Mounted on a wooden stand to which the plant shoot can be attached for support.
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For experiments in phototropism with seedlings. Three-chambered case of wood with to accept a variety of shutters. The right-hand chamber has windows in the top and back end, when used with a clear front window, acts as a control chamber. Supplied with opaque shutter, a slot shutter to admit light from one direction only, the clear windows for the control chamber, one orange and one blue filter to show the effect of excluding various parts of the spectrum. Complete with three glass containers for seedlings. Dimensions overall 180 × 530 × 180mm approx. (height × width × depth).
SKU: 4012600
