INTEGRAL ATOMIC WEIGHTS, PART 1. BY FRANK WILLIAM 

 DODD, Assoc. Mem. I. C. E., Weymouth, England. 



'Head llth November, 1912. 



This constitutes a suggestion that the accepted series of 

 atomic weights are fractional parts of a series of higher 

 or Integral Atomic Weights which more correctly represent 

 the properties and constitution of the atoms, except in the 

 matter of weight. 



The author was led to make a large number of calculations 

 with a view to find traces of such a series of Integral Atomic 

 Weights, and, at length, found that if the accepted atomic 

 weights were scaled off as ordinates at convenient horizontal 

 distances, and a curve drawn, as shown in Fig. 1, it was possible 

 to draw certain horizontal lines AB, CD, EF, GH, JK, above the 

 curve, in such positions that the specific gravities of the few 

 elements beneath any given horizontal line were a very simple 

 function of the distance between the horizontal line and the 

 curve at that point. Not only so, but the distances of these 

 horizontal lines from the base line were simple functions of 

 of each other. 



That is to say, referring again to Fig. 1, that the upper or 

 dotted portions of the atomic weight ordinates, which we may 

 call super-ordinates, are very simple functions of the specific 

 gravity of the elements to which they refer, and that the heights 

 of the lines AB, CD, EF, GH, and JK, above the base line, bear 

 the simple proportions 128, 132, 136, 232, 224, all but one of 

 which are multiples of 8 and the remaining one a multiple of 4. 



The super-ordinate divided by 1.8 gives the specific gravity 

 approximately. 



The author was led to complete the series but found that 

 in most other parts of the curve a line had to be drawn for 



(216) 



