404-405. =no sé si reírme=; supply _debo_ after _si_.
492. =el año de la Revolución de Septiembre=; _i.e._, 1868. The
Revolution began on September 19, under the leadership of
Generals Prim and Serrano, and Vice-Admiral Topete. It drove
Queen Isabel II from the throne, and initiated a six-year period
of violent change and innovation, which ended only with the
accession of Isabel's son Alfonso XII, in December, 1874.
520. =La verdad... no quisiéramos...=, _The truth is--we
would rather not!_
647. =se piense=; subjunctive in a time clause when the main
verb is future.