See this online ebook:
- Sermons for Lent, by Rev. John F. Burns, O.S.A., Ph.D. (Milwaukee, WI: Bruce Publishing Company, 1935). With Imprimatur. Available in pdf format at Curate@ND.
- [Note: The text bears the notice: “License—This work is made available under a Public Domain Mark 1.0 (No Copyright) license and should only be used in accordance with that license.”]
See also the texts and ebooks listed on the posts ‘Free eBooks & Resources for Lenten Observance‘ and ‘Free ebook: “Meditations on the Sufferings of Jesus Christ”, by Rev. Francis Da Perinaldo‘.
On Ash Wednesday in the Latin Church, and in belated observance of Clean Monday in the Eastern Catholic Churches. For other texts and ebooks, you may access the List of Free eBooks (Arranged by Title), the List of Free eBooks (Grouped by Subject), the List of Worth-It Catholic Books & eBooks, the Posts with Lists of eBooks, and the main page of the Catholic eBooks Project.
Catholic eBooks Project 
The link is here.
Thank you very much for the comment and correction. The post has been edited accordingly. God bless you