We relate the Burrows-Wheeler transformation with a result in combinatorics on words known as the Gessel-Reutenauer transformation.

Mantaci et al have shown that if a word x on the alphabet {a, b} has a Burrows-Wheeler Transform of the form ba then x is a conjugate or a power of a conjugate of a standard word. We give an alternative proof of this result and describe words on the alphabet {a, b, c} whose transforms have the form cba. These words have some common properties with standard words. We also present some results ab...

E. H. BURROWS, Pioneers and early years. A history ofBritish radiology, Alderney, Colophon, 1986, 4to, pp. viii, 264, illus., £32.50. E. H. Burrows sets out to describe the history of diagnostic radiology from its birth in the late-nineteenth century to 1930. He begins by documenting the discovery of X-rays and its British reception. Outlining the early history of British experimentation on X-r...

E. H. BURROWS, Pioneers and early years. A history ofBritish radiology, Alderney, Colophon, 1986, 4to, pp. viii, 264, illus., £32.50. E. H. Burrows sets out to describe the history of diagnostic radiology from its birth in the late-nineteenth century to 1930. He begins by documenting the discovery of X-rays and its British reception. Outlining the early history of British experimentation on X-r...