At the end of his academical course, 1838, he accompanied the family of Count S.G. Stroganov on a tour through Italy, Germany and France, occupying himself principally with the study of classical antiquities.

[1] In this work Buslaev proves that long before the age of Cyril and Methodius the Slavonic languages had been subject to Christian influences.

In 1855 he published Palaeographical and Philological Materials for the History of the Slavonic Alphabets, and in 1858 Essay Towards an Historical Grammar of the Russian Tongue, abounding with rich material for students, carefully collected from an immense quantity of ancient records and monuments.

[1] In his advanced age Buslaev was to a large degree incapacitated by blindness and passed his time in dictating his memoirs to a secretary.

Buslaev's work in the field of comparative literature was continued by his numerous students, notably Alexander Veselovsky.