Clasificación de la Biblioteca del CongresoRS57.H44

17th century(32) agriculture(15) alchemy(45) alternative(8) anthropology(31) biology(54) botany(230) business(35) chemicals(11) chemistry(168) cocaine(7) dictionaries(19) disease(14) diy(13) drugs(329) ecology(25) energy(11) folklore(51) food(54) foods(6) garden(41) gardening(223) gardens(19) guide(29) hallucinogens(7) handbook(14) healing(138) health(621) Healthy Living(14) herb(18) herbalism(382) history(272) history of medicine(79) history of science(26) home remedies(25) horticulture(28) magic(29) math(131) medical(233) medical reference(22) medicine(816) medieval(50) natural(14) natural science(19) nature(97) nursing(122) nutrition(14) opium(18) pharmaceuticals(62) physician(6) pills(18) poison(9) potions(7) prescription drugs(18) psychedelics(18) psychology(43) reference(566) references(6) research(18) science(271) spices(10) study guide(11)