4 books all with rounds and instruction.  A nice collection

1.  The Oxford Graduated Round Book selected and arr. W Gillies Whittaker  OUP - 2,3 & 4 part rounds by Beethoven, Mozart, Hayden and Schubert.  Clean and in tact.

2.  Music in the Round  Ralph Alan Dale - Rounds with piano accompaniments.  B& H 1965 2,3,4,5,6,8, & 10 part rounds by Byrd, Beethoven, Hilton and others (Anon)  Nice clean and in tact.

3.  A First Round Book edited by Kenneth Simpson, Novello - 100 rounds including 7,8 & 9 part rounds

4.  Cover missing, but includes 49 rounds mainly 3 parts from Pammelia, Deuteromelia, Melisamata, Byrd and Purcell and others