US$ 18.00
Four-cylinder equal-mass set at 100g each in copper
and 0-50 psi / 0-3
the optical-grade crown body producing low-dispersion baseline measurements in refraction comparison studies
vascular supply
Vertical section of a monocot leaf enlarged 300x exposes parallel venation
LPG Bunsen Burner with Cast Iron StabiliBase and Flame Stabilizer archive-pending Four-cylinder equal-mass set at 100gFlame stabilizer on this LPG Bunsen burner maintains a steady cone across drafts, while the cast iron anti tip base keeps the unit upright on classroom benches.
US$ 18.00
US$ 32.50
US$ 19.50