The auxin solution is prepared as recommended by G. H. Poesch in the Ohio Agricultural Experiment Station Bimonthly Bulletin, 191, April, 1938. One gram of indole-butyric acid crystals is dissolved in 125 cc. of 95% alcohol. Then 125 cc. of distilled water is added. This makes a stock solution of four thousand parts to a million in strength. The stock may be cut to the desired strength with distilled water. For late August cuttings, well-hardened, 80 parts per million is not too strong. For early June cuttings, forty parts per million appears to be adequate. The softer the cuttings, the weaker should be the solution. _Algae:_ In both the cold frame and the cold room the growth of algae is a problem. The sand medium becomes crusted, with subsequent interference with aeration. The algae sometimes creeps up the stems of cuttings, coats the leaves, and covers terminal buds. Starting each season with completely clean sand and equipment will not prevent the appearance of algae over a long season of continuous operation. On August 20 of this year the interior of the cold frame, including all of the plants, was well dusted with tri-basic copper sulphate, according to manufacturer's directions. To date no effect is noticeable either on the algae or on the plants. The various observations reported here should be verified by further tests. They are offered merely as aids to anyone planning to experiment with rooting chestnuts. When sufficient data and experience have been gained, a complete Station circular will be published. PRESIDENT BEST: If you have any questions, please save them until later. It's been suggested that we hear from Dr. Jesse D. Diller next, and that will give our good work horse, Dr. Crane, a chance to build up again for us, because we are going to work him mighty hard. DR. DILLER: I'd like to have the title of my paper changed to, "Evaluating Chestnuts Grown Under Forest Conditions." Evaluating Chestnuts Grown under Forest Conditions JESSE D. DILLER, _Pathologist, Division of Forest Pathology, Bureau of Plant Industry, Soils, and Agricultural Engineering, U. S. Department of Agriculture, Beltsville, Maryland_ During the 49-year period since chestnut blight was first reported from New York City, the U. S. Department of Agriculture has made more than 500 importations of chestnut seeds and scions, including nearly every species of chestnut in the world, as well as some closely related chinkapins and Castanopsis species. As early as 1909 the Department initiated chestnut breeding work. It was known that few, if any, of the chestnut, or related species, possess the timber-type characteristics of our American chestnut. It was also known that, in general, the Asiatic species show great natural resistance to the blight. But little, or nothing, was known about their site requirements.