| |
Click to Enlarge
|
J TUBE, SCREW FITTING (0046)
Glass J-tube formed from 1 mm bore thick walled capillary tube, with a brass screw and collar at the end of the longer limb. Used for sampling small quantities of gas held over water (e.g. in photosynthesis or respiration experiments). A bubble of gas is introduced into the short limb. This is then lowered into reagent solution and the bubble moved back and forth so that reagent diffuses through the end water seal. The change in length of the bubble indicates the amount of gas taken up by the reagent. Use potassium hydroxide for CO2 or alkaline pyrogallol for O2. Dimension : long limb - 250mm and short limb 100mm.
See Enlarge
|
|
|
|
Click to Enlarge
|
AUXANOMETER, ROTATING ORUM TYPE (0047)
For recoding the growth of a plant. Plain white paper fastened on the drum with a pencil attached with a thread to the growing tip of the plant, giving magnifications of 5x, 7x and 10x and is mounted on a pillar. The adjustment of pencil pressure is done by a spring. Base size 700 x 200mm !length x widthl. Operates at 220-240V AC, 50Hz. Supplied complete with three core mains cable.
See Enlarge
|
|
|
|
Click to Enlarge
|
CLINOSTAT, MECHANICAL (0048)
Takes one revolution every 15 minutes for 24 hours in vertical or horizontal position. The plant is sown in the pot, with clock movement on heavy metal base. With ON / OFF mechanism.
See Enlarge
|
|
|
|
Click to Enlarge
|
CLINOSTAT, ELECTRICAL (0049)
For demonstration of heliotropism and geotropism. Germinating seedlings are pinned to the cork table which is rotated by an electric motor at 5 revolutions per hour and rated 220-240V, 50-60Hz, 5W. The motor is spindle mounted and may be clamped by a thumbscrew so that the plane of the table can be set at any
angle. Slow rotation in the vertical or horizontal planes cancel out the effect of gravity and directional light. A plastic cover is provided for the cork table to shield the seedlings from draughts. Diameter of cork disc is about 100mm.
See Enlarge
|
|
|
|
Click to Enlarge
|
BOTTLE, CANADA BALSAM (0050)
With drop-on cap and glass. Capacity 30mL
See Enlarge
|
|
|
|
Click to Enlarge
|
GERMINATING DISH (0051)
Made of G.I. sheet or rigid plastic with perforated base. Sizes available are 200x150x50mm, 200x250x50mm & 250x300x50mm
See Enlarge
|
|
|
|
Click to Enlarge
|
COMBINATION DARK GERMINATION CHAMBER (0052)
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 x 530 x 180mm approx. [height x width x depth].
See Enlarge
|
|
|
|
Click to Enlarge
|
LEAF CLASP (0053)
Brass chrome plated.
See Enlarge
|
|
|
|
Click to Enlarge
|
LEAF CUTTER AREA (0054)
Made from steel, capable of cutting very thin material fitted with brass pipe having holes.
See Enlarge
|
|
|
|
Click to Enlarge
|
ARC INDICATOR (0055)
Made from steel, capable of cutting very thin material fitted with brass pipe having holes.
See Enlarge
|
|
|
|
Click to Enlarge
|
PRUNING SECATEURS (0056)
Major: For a clean accurate cut secateur for the professionals. Easily adjustable blade tension. Upper blade easily replaceable. PVC coated soft cushion grip. Size 225mm. Fine Cut: For accurate cut. High carbon steel blade, with rust resistant coating and easy to clean. Soft touch grip of easy hold and fit to hand. Size 200mm. Super Cut: For clean and accurate cut secateur. Ergonomically designed handles for a firm, comfortable and less tiring hold. Practical thumb operated safety lock. Easily replaceable blade with rust resistant coating. Size 175mm.
See Enlarge
|
|
|
|
Click to Enlarge
|
WEEDING TROWEL AND TRANSPLANTER (0057)
For planting and transplanting. Made of high quality steel. Wooden or plastic handle.
See Enlarge
|
|
|
|
Click to Enlarge
|
WEEDING FORK (0058)
For planting and marking. Made of high quality steel. Wooden or plastic handle.
See Enlarge
|
|
|
|
Click to Enlarge
|
HAND CULTIVATOR (0059)
For loosening and aerating the soil without damaging roots. Made of high grade steel. Wooden or plastic handle.
See Enlarge
|
|
|
|
Click to Enlarge
|
HAND WEEDER (0060)
For rooting out weeds. Wooden or plastic handle.
See Enlarge
|
|
|
|
