| | | | | | | | | |Other persons in }M.| 327| 2| 1| 2| 6| 5| 11| |contact with lead }F.| 132| 1| 2| 4| 8| 21| 75| +-------------------------+------+-----+-----+-----+-----+-----+-----+ | {M. | 4,504| 44| 41| 80| 10| 9| 19| |Grand total {F. | 2,361| 45| 57| 80| 19| 25| 37| | { +------+-----+-----+-----+-----+-----+-----+ | {(M. and F.)| 6,865| 89| 98| 160| 13| 15| 25| +-------------------------+------+-----+-----+-----+-----+-----+-----+ [A] Calculated on return of employment for 1907. [B] Calculated on return of employment for 1904. [C] Calculated on return of employment for 1900. The statistical evidence from death certificates published in the decennial supplements of the Superintendent of Statistics[2] is of significance, not only in enabling comparison to be made between one industry and another, in regard to mortality from lead poisoning, but also in determining the other causes of death most frequently entered on death certificates of lead workers, and therefore, if they are in high excess, as compared with male workers generally, they are to be ascribed with some degree of certainty to deleterious effects of lead on some of the principal organs. Thus, in Table X. a list of occupations is given in which the mortality from plumbism in the years 1900 to 1902 was double or more than double the standard. It represents the mortality which would occur if the male population in the particular industry had exactly the same age population as that of “all males.” Further, the annual mortality among “all males” is taken as 1,000, and that of males engaged in the several industries is stated as a proportion of this. This “mortality figure” of 1,000 is made up of the mortality from various causes (of which only those considered to bear upon lead poisoning are given in the table) in the proportion stated.