EXHIBIT 11 MINNESOTA MINING AND MANUFACTURING COMPANY AND CONSOLIDATED SUBSIDIARIES EARNINGS PER SHARE OF COMMON STOCK

Year ended December 31 1993 1992 1991 ______ _____ _____ (Millions) Income before cumulative effect of accounting changes $1,263 $1,236 $1,154 Cumulative effect of accounting changes -- (3) -- Net income $1,263 $1,233 $1,154 _________________________________________________________________ ______________ Primary earnings per share: Income before cumulative effect of accounting changes $5.82 $5.65 $5.26 Cumulative effect of accounting changes -- (.02) -- Earnings per share $5.82 $5.63 $5.26 Weighted average number of common shares outstanding 217,156,197 219,086,868 219,571,565 Fully diluted earnings per share: Income before cumulative effect of accounting changes $5.76 $5.58 $5.20 Cumulative effect of accounting changes -- (.01) -- Earnings per share $5.76 $5.57 $5.20 Weighted average number of common shares outstanding 217,156,197 219,086,868 219,571,565 Common equivalent shares 2,165,871 2,126,997 2,283,872 Average number of common shares outstanding and equivalents 219,322,068 221,213,865 221,855,437 [TEXT] Primary earnings per share is computed by dividing net income by the weighted average number of common shares outstanding for each period. The calculation excludes the effect of common equivalent shares resulting from stock options using the treasury stock method as the effect would not be material. Fully diluted earnings per share are computed based on the weighted average number of common shares and common equivalent shares outstanding for each period. (1) This calculation is submitted in accordance with Regulation S-K item 601(b)(11) although not required by APB Opinion No. 15 because it results in dilution of less than 3%.