Index: Papers of John Adams, Volume 20 Manufactures and manufacturing 10 U.S. patents for 1 illustration PJA20 349 PJA20 xiii xx 201 221 222 350 351 355 356 5 U.S. PJA20 20 179 253 348 391 4 of printing type PJA20 212 214 220 471 4 of cotton and wool 1 illustration PJA20 349 PJA20 xiii–xiv 348 350 2 British PJA20 357 387 1 child labor and PJA20 350 1 education in PJA20 29 1 glass PJA20 193 1 iron PJA20 136 1 of linen PJA20 193 1 marble PJA20 431 1 metal PJA20 214 1 of potash PJA20 356 1 rum distillation PJA20 65 1 steam engines PJA20 221–22 1 of sugar PJA20 391 1 possible U.S. in Asia PJA20 362