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EXPLOSIVES used in MR. HALL'S DISTRICT in the YEAR 1906.
The Appendices to this Report are as follows : Appendix No. 1.—A detailed list of all the fatal accidents, giving in each case a short summary of the circumstances of the accident and dividing them into classes under separate headings in accordance with the, official schemes. In looking through this list one cannot help noticing how varied are the causes and circumstances of mining accidents.
Appendix No. II.-A list of prosecutions with the amount of fine in each case. It will be noticed that the names of comparatively few firms appear in the list of prosecutions of workmen by employers, and that the offences charged range over a wide field. The list also contains details of the prosecutions undertaken by His Majesty's Inspectors against managers and employers.
Appendix III.-A list of the fatal explosions of fire-damp or coal dust with the resulting loss of life in Mr. Hall's District from 1873 to 1966 inclusive. This record shows that during the last four years there was no fatal explosion in the district.
Appendix Iỹ.--Gives the questions which were asked of the candidates who sat for examination for first and second class certificates at Wigan in June, 1906, together with instructions and information for the candidates.
Appendix V.—List of abandoned mine plans sent in and deposited at the Home Office in the year 1906.
Table 9 gives the number of persons employed in and about all mines in the district, while Table 10 shows the number employed at slate mines ; these figures are included in Table 9.
From Table 9 it will be seen that there was a decrease of 544 in the number of persons employed as compared with 1905. Table 10 shows there was a decrease of 646 in the number employed at slate mines, so that there was really an increase of 102 in the number of ore miners at work. Anglesey, Carnarvon, Chester, Denbigh and Montgomery show an improvement, while there was a falling off in Flint and Merioneth, more especially in the latter, where 93} per cent. of the total number are engaged in slate mining.
The output of all the minerals from each county for the year 1906 is given in Table 11. Table 12, which also gives the value of the various minerals, will enable a comparison to be made at a glance between the output and value of each mineral from every county, for the years 1905 and 1906.
As Section I. shows a decrease in the number of persons employed, it is natural to expect a falling off in the production of minerals for the year. The total output was 269,107 tons, wbich was less by 16,883 than in the previous year. The total value of the minerals was £529,401, a decrease of £33,451, as compared with 1905. The following minerals show a diminished output and value, viz. : barytes, gold ore, igneous rocks, iron ore, limestone, rock-salt, gravel and sand, sandstone, slate and slabs ; while in the case of zinc ore there is a slight improvement in the value, though the output is smaller. The decrease in the output and value of roofing slates is serious, and I find that some of the slate mines have been closed during the year, and that the outlook is anything but promising
There was an increase in the output and value of the following minerals, viz. : clay, copper precipitate, lead ore, manganese vre and ochre. Though the increase in the output of lead ore was only 198 tons, prices were good, and the value was greater than in the previous year by 25,287. The output of manganese ore was the highest ever recorded from the district. The bulk of the ore, which is ferruginous, comes from near Aberdaron, in Carnarvonshire. The value, as shown in Table 12, does not represent the true value of the cre at the mine in 1906, as large contracts had been signed in 1905, when the prices were considerably lower than last year.
As stated in my Report for 1905, the copper precipitate at the Mona and Parys mine is got in the form of watery solution. During the year 1906 over 70,000,000 gallons of water was pumped into the mine, and this, in addition to the water which finds its way into the mine by natural means, making a total of about 112,000,000 gallons, is let out by a deep level and passed into precipitation pits, one of which is shown in Fig. 1.
ACCIDENTS. During the year 1906 there occurred nine fatal accidents, each causing the loss of one life, at mines classed under the Metalliferous Mines Regulation Acts. They all happened at slate mines ; eight in the county of Merioneth and one in the county of Carnarvon. Five took place underground and four above ground.
TABLE 13. SUMMARY of FATAL and Non-FATAL ACCIDENTS, classified according to Place