 13-001. HYDROSTATICAL GLASS BUBBLE SETS
 13-002. SIKES'S HYDROMETERS
 13-003. GLASS SACCHAROMETERS
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 13-004. BATE'S SACCHAROMETERS
 13-006. FOLDING SQUARE BOXWOOD DIPPING RODS
 13-007. SCREW-TOGETHER ROUND WOOD ULAGING ROD SETS
 13-008. BOXWOOD PROOFING SLIDE RULES
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