. Annual report of the Board of Regents of the Smithsonian Institution . rigs. 21, 22. Fire-making Set and Extra Hearth. Cat. No. 10258, U. S. N. M. Frobisher Bay. Col-lected by Capt. C. F. IN a Leathern Case. Cat. No. 10191, U. S. N. M. Collected by Capt. C. F. 24. Boring-set. Cat. No. 34114, U. S. N. M. Cumberland Gulf. Collected by L. Kumleiti. FIRE-MAKING APPARATUS. 557 on a groove (fig. 34), wbicU collects the grouud-off particles and facili-tates ignition. Karely fire is made by working tbe drill on a plane snr-face, in single, non-connecting holes. The dif
. Annual report of the Board of Regents of the Smithsonian Institution . rigs. 21, 22. Fire-making Set and Extra Hearth. Cat. No. 10258, U. S. N. M. Frobisher Bay. Col-lected by Capt. C. F. IN a Leathern Case. Cat. No. 10191, U. S. N. M. Collected by Capt. C. F. 24. Boring-set. Cat. No. 34114, U. S. N. M. Cumberland Gulf. Collected by L. Kumleiti. FIRE-MAKING APPARATUS. 557 on a groove (fig. 34), wbicU collects the grouud-off particles and facili-tates ignition. Karely fire is made by working tbe drill on a plane snr-face, in single, non-connecting holes. The difference between these features is, that it is found to be moredifficult to get fire by a single hole without groove, or slot, than whenthe latter features are added. The powder forms a ring around theedge of the hole, is liable to be dispersed, and does not get together insufficient amount to reach the requisite heat for ignition. Of coursethis is obviated when a second hole is bored connecting with the first,when the latter becomes a receptacle for the powder. It is
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