His two famous works , Teatro critico universal -LRB- NUMBER@1 -RRB- and ORGANIZATION@1 eruditas y curiosas , are multi-volume collections of essays that cover a range of subjects , from education , law , and medicine , to superstitions and popular beliefs .

His two famous multi-volume collection of essays , Teatro critico universal -LRB- NUMBER@1 -RRB- and ORGANIZATION@1 eruditas y curiosas cover a range of subjects , from education , law , and medicine , to superstitions and popular beliefs .
