JAN WYNANTS, born at Haarlem about 1620, and still living in 1677, was the first master who applied all the developed qualities of the Dutch School to the treatment of landscape painting. In general his prevailing tone is clear and bright, more especially in the green of his trees and plants, which in many cases, merges into blue. One of his characteristics is a fallen tree trunk in the foreground, as may be seen in three out of the six examples in the National Gallery. The carefulness of his execution explains how it was that in so long a life he only produced a moderate number of pictures. Smith's catalogue contains about 214. These differ much according to their different periods. In his first manner peasants' cottages or ruins play an important part, and the view is more or less shut in by trees of a heavy dark green, the execution solid and careful. In his middle time he generally paints open views of a rather uneven country, diversified by wood and water. That Wynants retained his full skill even in advanced life is proved by a picture dated 1672, in the Munich Gallery, representing a road leading to a fenced wood and a sandhill, near which in the foreground are some cows (by Lingelbach) being driven along. In his last manner a heavy uniformly brown tone is often observable. It is his genuine feeling for nature that makes Wynant's pictures so popular in England, where we meet with a considerable number of his best works. JACOB RUISDAEL (born at Haarlem 1628, died there 1682) is supposed to have developed under the influence of a school there that was opposing Van Goyen's tone treatment by local colour. Though not always the most charming, Ruisdael is certainly the greatest and the most profound of the Dutch landscape painters. His wide expanses of sky, earth or sea, with their tender gradations of aerial perspective, diversified here and there by alternations of sunshine and shadow, attract us as much by the pathos as by the picturesqueness of their character. His scenes of mountainous districts with foaming waterfalls; or bare piles of rock and sombre lakes are imbued with a feeling of melancholy. Ruisdael's work may be well studied in the six examples at Hertford House, and the fourteen in the National Gallery. Among his finer works in Continental collections the following are some of those selected by Kugler for description. At the Hague is one of his wide expanses--a view of the country around Haarlem, the town itself looking small on the horizon, under a lofty expanse of cloudy sky in the foreground a bleaching-ground and some houses reminding us, by the manner in which they are introduced, of Hobbema. The prevailing tone is cool, the sky singularly beautiful, and the execution wonderfully delicate. A flat country with a road leading to a village, and fields with wheatsheaves, is in the Dresden Gallery. This is temperate in colouring and beautifully lighted. Equally fine is an extensive view over a hilly but bare country, through