He published his doctorate in 1873 on comparative grammar of languages.

In 1900 he became a reader in comparative grammar there.

Descriptive Neither historical nor comparative grammar is a likely foundation for a modern language method.

Lectures on the comparative grammar of the Semitic languages.

"The significance for comparative grammar of some ablauts in the Tibetan number-system".

The great truth which his Comparative Grammar established was that of the mutual relations of the connected languages.

An introduction to the comparative grammar of the Semitic languages: phonology and morphology.

His great work was a comparative grammar of Indo-Aryan languages, published in 3 volumes in 1872-1879.

Semitic languages: outline of a comparative grammar, 2000.

How about some comparative grammar?