Installment of E. A. Posselt's "Fabric Analysis" series (continued from December 1918 issue's predecessor) on testing yarns and fabrics for moisture, or conditioning. It explains the hygroscopic nature of fibres, over-conditioning of purchased yarn, oven-drying test methods and temperatures, and worked regain calculations for cotton and union yarns. It gives normal moisture figures for wool, silk, cotton and flax and reproduces the 1875 Turin standard regain table. The second page also carries a short item with a table of Argentine wool exports by destination, 1912-1917.