1 Thick napped velvet 6.90 6.60 7.00 7.00 2 Thin stretched rubber, such as is used on tambours 5.70 5.40 6.00 6.00 3 Glazed thin cardboard 5.80 5.50 5.50 6.00 4 White silk ribbon--always stroked with the ribs 5.80 5.70 5.40 5.00 5 Soft, split, rough leather 5.50 5.50 5.00 6.00 6 Smooth polished cork 5.70 5.10 5.40 6.00 7 Glazed tin 5.00 4.50 6.00 6.00 8 Rough, tarred paper 4.30 4.60 4.00 5.00 9 Blue blotting paper 4.50 5.10 4.20 5.00 10 Sand paper no. 1, fine grained 2.20 3.50 2.00 4.00 11 Shot no. 3, set in paraffine 2.70 4.90 3.00 3.50 12 Sandpaper no. 2-1/2, coarse-grained 1.40 2.00 1.50 3.00 13 A coarse, rough, ridged cotton cloth, always stroked across the ridges 4.00 2.40 4.70 3.50 14 A thin, closely woven white muslin 4.20 4.60 4.20 5.00 Totals 63.70 65.40 63.90 71.00 Average 4.55 4.67 4.56 5.14 TABLE III. TONES The table of tone-combinations shows that some are simply repetitions of the same chord in a higher octave, as 1 and 9, 5 and 13, 15 and 14. The first sixteen are harmonious; so also the twenty-sixth; the others introduce beats and discords, some of which are agreeable, as 20 and 21, while others are disagreeable, as 19 and 27. Individual differences appear in this as in the previous series. The totals introduced into the tables simply go to show that in each series the total judgments are not widely diverse. _No of_ _Standards._ _Tones._ _Description._ _F._ _M._