. Journal of applied microscopy and laboratory methods. as in the sketch, are set ina wire basket in rows, cotton wool being placed inthe bottom for them to rest on. We use baskets3x5 inches, and 5 inches deep ; these will hold tentubes in a row, and by putting in layers of cottonwool, three tiers can be placed in a basket. In thisway, thirty tubes occupy about as much space asfive or six of the ordinary style of tube wouldoccupy, and can be handled as a unit in steriliza-tion, etc. The open arm of the tube is sufficientlylong to hold all of the liquid when it is forced outof the closed arm, w
. Journal of applied microscopy and laboratory methods. as in the sketch, are set ina wire basket in rows, cotton wool being placed inthe bottom for them to rest on. We use baskets3x5 inches, and 5 inches deep ; these will hold tentubes in a row, and by putting in layers of cottonwool, three tiers can be placed in a basket. In thisway, thirty tubes occupy about as much space asfive or six of the ordinary style of tube wouldoccupy, and can be handled as a unit in steriliza-tion, etc. The open arm of the tube is sufficientlylong to hold all of the liquid when it is forced outof the closed arm, without wetting the cotton of the volume and composition of the gas are made as easily andaccurately as in the old style of tube. We have all of our tubes, test tubesincluded, made without lips, as we think it tends to decrease the breakage, andmake the tubes pack better in baskets. The abolishment of the bulb and con-striction at the neck also makes cleaning somewhat less of a grind. Lawrence Experiment Station. STEPHEN DeM. and Laboratory Methods. 1405 The Cone Net. This net was originally described in the Transactions of the WisconsinAcademy of Sciences, Arts, and Letters, Volume VIII, page 397, 1892. Sincethat time I have had numerous inquiries for directions for the construction ofthe net, and in response to these I give the following account of the net as Inow use it. The apparatus is still very crude and improvements can easily besuggested. It has met my purposes, however, and therefore for some years Ihave given no attention to improving its details of construction. The metalparts of the apparatus are illustrated in the annexed figures. The diameter ofthe base of the cone top in the net which I now use is three inches. From thisthe scale of the drawings can easily be computed. The cone top is represented
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmicrosc, bookyear1901
