THE TORSION DLT5 BALANCE makes three times as many weighings per hour as before. Here's why. Conventional laboratory balances use a graduated beam and slide weight for fine weighing after the weight has been determined to within 10 grams. Under the old procedure the balance is arrested, slide weight positioned, balance released, balance comes to rest, position of indicator noted, balance arrested again, slide weight repositioned and so on until the weight is determined within 0.1 gram.

TORBAL'S NEW B.T.L. STAINLESS STEEL ANAEROBIC JAR, a modification of the Mclntosh and Fildes pattern, is a simple but effective apparatus for producing anaerobic conditions, and incorporates a number of features notably a room temperature catalyst which result in improved growth of anaerobes and safer, easier and quicker methods of handling this important technique. Jar, lid and valves are of stainless steel to resist corrosion. Two needle valves fitted in the lid offer connection to hydrogen and vacuum supplies.

The Torbal B.T.L. Zone Melting Apparatus offers the research laboratory an inexpensive tool for refining small amounts of organic compounds to a high degree of purity - for concentration.The material to be purified is contained in a glass tube having an effective length of 6 inches. This tube is placed vertically in a removable metal guide sleeve and supported on a saucer-shaped platform. The tube is raised automatically at a rate of 1 inch per hour by means of a small synchronous motor.

The Torsion Model GC-2 Flexible Glove Cabinet is ideally suited for those laboratory situations in which biological or chemical materials must be manipulated under a controlled atmosphere or under sterile conditions. The cabinet is constructed of heavy plastic sheeting supported over a collapsible frame of plated steel rods. This type of construction retains the sheeting in an extended position even when the chambers are under a slight negative pressure, making the cabinet suitable for work involving low activity radioactive materials.