tion." The experimentation has been completed and the write-up is in progress. Project Toboggan is reported on in this period. April - June, 1961: Under the Vela Uniform Whirlaway program, a brief description of the compatibility in field and environmental tests completed on 4 through 14, April at the NIS is presented. "It was established that the Whivleweyy(|device could be assembled in the assembly building, transported to the tunn@l portal, mounted on on &@ mine car, moved to the zero point in the tunnel, and positioned within plus or minus one inch of the zero point. Compatibility of the black box with the polyethylene experiment, the zero rack, LRL prompt-sampling pipe, and the two LASL prompt- sampling pipes was also established. A concrete pad will be required at the zero point to provide a stable platformfor the device and the lead paraffin shielding." As far as any words addressing any Vela Uniform, Plowshare, or weapons test activities or preparations, there are none in this report. That is with the ex- ception of the Whirlaway tests. July - September, 1961: The section on test operations seems to indicate that the number of specific. tests with bombs, missiles and rockets, and miscellaneous systems has picked up again in quantity, at least. For instance, there were 49 Mark 57 bombs tested in various ways (vibration, fusing and firing, ballistic, parachute development, etc.). Note that there is absolutely no mention of any test resumption or test preparations either in this report or in the previous Quarterly Reports. October - December, 1961: 2 #8 To the specific weapon list, the XW-60 (Typhon) has been added to the devices