. Science-gossip . Test-tube Stand for Desmids. the pipette, press the ball to expel the air beforeentering the water, and until the point of the tubealmost touches the surface of the mud. Then, onreleasing the pressure on the ball, as much water asyou desire will be sucked into the pipette and thenceconveyed into a test-tube. This pipette will befound invaluable after some practice, as by meansof it clusters of desmids which can be seen growingup from the mud in a thin filament can be suckedup quite clean and without any adhering mud. Itis also a most useful tool to use at home inchanging des
. Science-gossip . Test-tube Stand for Desmids. the pipette, press the ball to expel the air beforeentering the water, and until the point of the tubealmost touches the surface of the mud. Then, onreleasing the pressure on the ball, as much water asyou desire will be sucked into the pipette and thenceconveyed into a test-tube. This pipette will befound invaluable after some practice, as by meansof it clusters of desmids which can be seen growingup from the mud in a thin filament can be suckedup quite clean and without any adhering mud. Itis also a most useful tool to use at home inchanging desmids from one tube to another whenrequired. On reaching home, remove the corks from tubes,and place them into a stand such as shown infig. 3. This is constructed with a block of woodhaving holes drilled in it. The stand must beof a suitable size to hold six tubes nine anda-half inches long by two inches wide and oneand a-half inches deep, the holes being bored three-quarters of an inch deep and of a size toensure t
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Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectscience
