641. A muertos y a idos: proverbio en un acto

642. A Mulher em Portugal [Texto impreso] : Cartas dum estrangeiro

643. A mulher que esgotou o amor [Texto impreso] : Romance da actualidade

644. A musa d'as aldeas [Texto impreso] : Versos gallegos

645. A Musa d'as Aldeas [Texto impreso] : Versos gallegos

646. A Musa em Ferias [Texto impreso] : (Idilios e Satiras)

647. A musical dictionary : being a collection of terms and characters, as well ancient as modern, including the historical, theoretical and practical parts of music; as also, an explanation of some parts of the doctrine of the antients : interspersed with remarks on their method and practice, and curious observations on the phoenomena of sound mathematically considered, as it's relations and proportions constitute intervals, and those again concords and discords the whole carefully abstracted from the best authors in the Greek, Latin, Italian, French and English languages

648. A musical grammar in four parts [Texto impreso] : notation, melody, harmony, rhythm

649. A la muy antigua, noble y coronada villa de Madrid [Texto impreso] : historia de su antiguedad, nobleza y grandeza

650. A la mysteriosa tardanza de la Reyna Reynante nuestra señora, que Dios guarde y trayga con bien [Texto impreso]

651. A N. Padre S. Francisco [Texto impreso]

652. A la nación española [Texto impreso] : sobre reformas ortográficas : historia de la ortografía castellana ...

653. A la Nacion Española sobre reformas ortográficas: historia de la ortografía castellana

654. A la Nación [Texto impreso] : manifiesto programa de la colonia filipina reformista residente en Madrid : 10 de febrero de 1898

655. A la Nación y para la Historia [Texto impreso]

656. A Napoleon el Grande, Emperador de los Franceses, a la Emperatriz María Luisa, Princesa del Austria, su esposa, en el fausto dia aniversario de sus nombres loor y gloria [Texto impreso] : oda

657. A narrative of the campeign of the British army in Spain commanded by... Sir John Moore... [Texto impreso]

658. A narrative of the conversion from popery of the Rev. G. Cerioni and The Rev. L.D. Moscardi, fornerly Padre Berardo da Jesi, and Padre Leonardo da Camarda ... [Texto impreso]

659. A narrative of events, since the first of august, 1834 [Texto impreso]

660. A narrative of excursions, voyages, and travels, performed at different periods in America, Europe, Asia, and Africa [Texto impreso]