Test #3 located on the section of Bitumuls HRM mix containing 10 per cent of Bitumuls gave the best results of all tests, because only a very small area within the painted circle was disturbed, and this only to a depth of about 1/2 inch. Test #4 located on the Bitumuls HRM mix containing 6 per cent of Bitumuls disturbed the surface to an area slightly larger than the painted cirele and to a depth of about 1 inch to 1-1/2 inch. Test #5 on the Bitumuls Macadam was entirely unsatisfactory, as this area was entirely loosened and unbonded to the entire depth of 3 inch and to an area almost twice as large as the painted circle, and shock waves were visible for a distance of 10 feet from the center of the circle. These tests clearly prove that a Bitumuls Macadam is not a satisfactory type of pavement for the purpose intended by these tests. Test #3 of the Bitumuls 10 per cent mix is def~ initely the type best suited for the purpose in- tended, GENERAL REMARKS Bitumuls grade HRM in storage at the job location not only will make satisfactory pavements for all types of uses, but can also be used for dust control. It is suggested for this purpose that the Bitumuls HRM be diluted with water at the rate of from 10 to 20 parts of water to one part of Bitumuls and applied by gravity through an ordinary water sprinkling truck. A small amount of experimentation will be necessary to arrive at the correct amount of dilution of the Bitumuls and the number of applica- tions of same to secure the desired degree of dust control, This is the same type of dust control which has proved satisfactory at Inyokern. Another use for the Bitumuls which may prove handy would be the construction of sidewalks wherein one inch of Bitumuls mix could be laid between one inch header boards on a properly water bound sub-base and screeded and floated in the same method as cement concrete to a smooth finish. Recreational areas for basket ball, volley ball, ete. can also be constructed, using your usual method of sub-base operation using water bound crusher run coral with a Bitumuls mix wearing surface of 1-1/2 inches to two inches in thickness. 5-287