make the working himself into a proper clairvoyant state, he lucidly equal to one half of the difference in the two diameters; and whole adjustment at one end by lifting or lowering it as the explained that " from every substance in nature, there are since the iine is sufficiently far from the… … line and is adjusted so that the plumb line, B, in Fig. 2, in mind what effect, it will have on the various belts, in mak- recognized and utilized." will stand true with the line or mark, B, in Fig. 1. W.en ' There is evidently a good opening for sane civil engineers ing them too long or too short;…
