It was six weeks before he could leave his bed; but as soon as he was able to sit up he became anxious to resume his labours; and, taking leave of our kind friends, we set out on a tour through the South of Scotland, visiting every garden of consequence on our route, and making notes of all we saw. Notwithstanding all he had suffered during his severe illness, and the state of weakness to which he was reduced, he exerted himself to see every thing; and he was never deterred, either by fatigue or wet weather, from visiting every garden that he heard contained any timing interesting. After traveling about a fortnight we reached Edinburgh, but Mr. Loudon only staid one night; and, leaving Agnes and me there, he proceeded on the 13th of August alone to Glasgow, on his road to Stranraer, where he was going to hay out the grounds at Castle Kennedy, for the Earl of Stair.

On the 1st of September he returned to Edinburgh, which of course he found greatly changed since he had resided there thirty-seven years before; and for the next fortnight he had great pleasure in showing me the places he had known when a boy. On the 13^th of September, having hired a carriage at Edinburgh, we set out on our return home by land; and at Newcastle we spent two or three days with our friends Mr. and Mrs. Sopwith, where Mr. Loudon was highly gratified with the arrangement of Mr. Sopwith's library, which we found a perfect temple of order.

On leaving Newcastle we traveled through Chester-le-Street to Durham, visiting nearly all the fine places in that county, particularly Raby Castle; and afterwards we proceeded to Darlington, where we took the railroad to York. We stayed three or four days in this city, and then we returned to London by the railroad.

In December, 1841, appeared the first number of the Encyclopedia of Trees and Shrubs, the work consisting of ten monthly numbers. The abridgement of the Hortus Lignosus Londinensis was published immediately on the conclusion of the Encyclopedia of Trees and Shrubs; and in May, 1842, appeared the First Additional Supplement to the Encyclopedia of Cottage Architecture.

In addition to the works which have been enumerated, Mr. Loudon contributed to several others, such as the Encyclopedia of Domestic Economy, and Brande's Dictionary of Science, Literature, and Art. He also wrote the article Planting for the new edition of the Encyclopedia Britannica.