obstructs wheeled carriages, and forbids the use of the sledge; and, unless peremptorily compelled to move forward, the Russian merchants--the most experienced of Siberian travellers--await, in some convenient resting-place, the hardening of the winter road. From Mr Erman's account, a better place than Tobolsk could scarcely be found, in those wild regions, wherein to pass a few weeks of compulsory inaction. Nevertheless, and although cordially received by the governor-general, Velyaminov, from whom, and from other Russian officers, he got much useful information, our traveller was impatient to be off. He had a pet scheme in view. From the very commencement of the journey he had planned an excursion to the mouth of the Obi, within the Arctic circle. To this he was partly induced by the desire of tracing certain magnetic lines, and partly by "the alluring prospect of enjoying, on the northern part of the Obi, the first undisturbed intercourse with the aboriginal possessors of the land, where they are little changed by foreign influence." Accordingly, towards the middle of November, the drifting ice upon the Irtuish having united into a solid sheet, Mr Erman joyfully made final preparations for his journey to Obdorsk. They were few, and soon completed. A Kosak guide and interpreter, a fur dress, a copper kettle, bread and ham, salted salmon and caviar, were stowed in a couple of sledges, one of which was light enough to be drawn by dogs or reindeer. It was held advisable also to take out a fresh passport, signed by the governor of Tobolsk, in lieu of the one delivered at St Petersburg, for, in places far removed from the great road across Siberia, people have confused and indistinct notions of the power which issues from the capital of the empire. The larger sledge was provided with otvódi or guides--two strong bars placed lengthways on either side the carriage to prevent an upset. "Towards the end of winter, the snow-ways, which are constantly travelled upon, have an undulating surface, like that of a stormy sea, and give the sledge a motion so like that of a ship tossed on the waves, that travellers unused to it often grow sea-sick on the road, and the use of otvódi is a very necessary precaution." Russian travelling, delightfully rapid, has many drawbacks. Upon the log-roads, (formed of tree-trunks,) the violent and incessant jolting is said to have even worse effects than the excessive undulations of the sledge. After a few years, it not only brings on a complete paralysis of the mental faculties of the Russian postilions, but also occasions spinal disease, to such an extent as to have obtained for those roads the significant name of spine-crushers.