D. W. Cruickshank, «Don Juan de Vera Tassis y Villarroel», in Aureum Saeculum Hispanum. Festschrift für Hans Flasche zum 70. Geburtstag, edited by K. H. Körner and D. Briesemeister (Wiesbaden, 1983), p. 50. Vera did correct the 1691 edition.

This is the simplest explanation for what happened on folio 245 of the genuine 1664 edition of Calderón's Tercera parte. See M. R. Greer, «Calderón, Copyists, and the Problem of Endings», BCom, 36 (1984), 72-3.

Moll, «Problemas bibliográficos», 70.

See D. W. Cruickshank, «The Textual Criticism of Calderón's comedias: A Survey», in The comedias of Calderón, I, 25.

See W. F. Hunter and D. W. Cruickshank, «Notes on the Text of Calderón's "Psiquis y Cupido para Toledo"», Iberoromania, 4 (1970), 282-4; for other examples of cancels, see Moll, «Problemas bibliográficos», 70-2. Sometimes when the printers had to produce a suelta which required several whole sheets and a quarter sheet, they would set the quarter sheet twice and print it in the manner described for the quarter sheet cancel: see D. W. Cruickshank, «The First Edition of El burlador de Sevilla», HR, 49 (1981), 463; sueltas, bound by «stabbing», could cope with a single leaf. As a last resort, the printers could make corrections by hand. Only if these occur in several copies will it be safe to assume that they are the printers'. Even then, they will not always be authoritative.

For miscorrections made by the corrector, see E. M. Wilson, «On the Tercera parte of Calderón - 1664», SB, 15 (1962), 227-8.

See Cruickshank, «The Textual Criticism of Calderón's comedias», p. 12.

For studies on the development of play-printing in Spain, see E. M. Wilson's «The comedia suelta: History of a Format», in E. M. Wilson and D. W. Cruickshank, Samuel Pepys's Spanish Plays (London, 1980), pp. 85-120; and Cruickshank's «Calderón and the Spanish Book Trade», in K. and R. Reichenberger, Bibliographisches Handbuch der Calderón-Forschung, II (Kassel, 1981), 3-8.

Cruickshank, «Some Aspects of Spanish Book-production»; C. Péligry, «Les Difficultés de l'édition castillane au XVIIe S. à travers un document de l'époque», MCV, 13 (1977), 267-77.

Pedro Calderón de la Barca, En la vida todo es verdad y todo mentira, edited by D. W. Cruickshank (London, 1971), p. lxv.