A Rotary Rack for Doing the Weil-Felix Reaction
نویسندگان
چکیده
SUNITA SINGH, m.b., b.s. (Punjab) From the Brigade Laboratory, Allahabad Instead of the ordinary rectangular rack, a circular rotary rack has been used by us. The experimental tubes are rotated alongside the control tubes. The light comes from below after being reflected from a black surface. The readings are very clear and can be quickly made without disturbing the tubes. The rack consists of two circular plates of wood (figure 1) about 7 inches in diameter, and perforated near the margin by a double (or triple)
منابع مشابه
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