"During composting the manure should lose practically all objectionable odor, and with material properly prepared there is no unpleasant feature after the preparation of the beds. Other unmistakable signs of sufficient composting are the oleaginous "feel," the pliability, and the uniform brown color of the straw. Commonly the temperature declines to about 120° or 130° F. As soon as the compost is ready it is desirable to make the beds and to have the spawning follow as promptly as possible...."