sometimes found in his pictures, and substantial evidence exists that there was friendship between the two men. At some period of their lives they laid their hands to the same canvases, on each of which they left their joint mark. On some it was the signature of the name, on others the more convincing signature of style. There are landscapes in the collections of the dukes of Bedford and Westminster, in which Cuyp has represented either the frozen Maes with fishermen packing herrings, or the moon reflecting its light on the river's placid waters. These are models after which Van Der Neer appears to have worked. The same feeling and similar subjects are found in Cuyp and Van Der Neer, before and after their partnership, but Cuyp was the leading genius. Van Der Neer got assistance from him; Cuyp expected none from Van Der Neer. He carefully enlivened his friend's pictures, when asked to do so, with figures and cattle. It is in pictures jointly produced by them that we discover Van Der Neer's presence at Dordrecht. We are near Dordrecht in the landscape sunset of the Louvre, in which Cuyp evidently painted the foreground and cows. In the National Gallery, London picture Cuyp signs his name on the pail of a milkmaid, whose figure and red skirt he has painted with light effectiveness near the edge of Van Der Neer's landscape. Again, a couple of fishermen with a dog, and a sportsman creeping up to surprise some ducks, are Cuyp's in a capital Van Der Neer at the Staedel Institute in Frankfurt. Van Der Neer's favourite subjects were the rivers and watercourses of his native country either at sunset or after dark. His peculiar skill is shown in realizing translucence which allows objects even distant to appear in the darkness with varieties of warm brown and steel greys. Another of his fancies is to paint frozen water, and his daylight icescapes with golfers, sleighers, and fishermen are as numerous as his moonlights. But he always avoids the impression of frostiness, which is one of his great gifts. His pictures are not scarce. They are less valuable in the market than those of Cuyp or Hobbema; but, possessing a charm peculiarly their own, they are much sought after by collectors. Out of about one hundred and fifty pictures accessible to the public, the choicest selection is in the Hermitage at