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Amoeba binary fission, Amoeba proteus, Balantidium coli w.m., Chlamydomonas w.m., Entamoeba histolyca w.m., Euglena, Foraminifera shell w.m., Leishmania donavini w.m., Malarial parasite (in human blood), Malarial parasite (signet ring), Monocystis (Sporozoite), Monocystis (Trophozoite), Noctluca w.m., Paramoecium w.m., Paramoecium-binary fission, Paramoecium-conjugation, Polystomella w.m., Trypanosoma in blood, Volvox, Vorticella
Aluminium, diameter 50 mm, in metal frame, with two hooks.
Brass, with ring on top
Aluminium tubular balance, with zero adjustment. Scales are both in grams and Newton. With upper & lower suspension hooks, graduation on inner tube.
With effective scale lengths of nearly 9″, Rotary scales offer greater accuracy than linear scales. All balances are graduated in gram/Newton. Dial: 3″ diameter metal suspension ring at top and hook at bottom.