Rubbing test for paper, [197]
Rye straw, [98]
Salle, [175]
Salmon’s guillotine, [174]
Save-all, [154]
Schultze’s method of isolating cellulose from wood, [21]
Schurmann’s calender rolls, [171]
Schweizer’s reagent, [5]
Sections of fibres for examination, [38]
Seed hairs, [46]