ANNUAL REPORT OF THE SMITHSONIAN INSTITUTION FOR THE YEAR ENDING JUNE 30, 1905. SUBJECTS. 1. Proceedings of the Board of Regents for the sessions of December 6, 1904, and January 25 and March 6, 1905. 2. Report of the executive committee, exhibiting the financial affairs of the Institution, including a statement of the Smithson fund, and receipts and expenditures for the year ending June 30, 1905. 3. Annual report of the Secretary, giving an account of the operations and condition of the Institution for the year ending June 30, 1905, with statistics of exchanges, etc. 4. General appendix, comprising a selection of miscellaneous memoirs of interest to collaborators and correspondents of the Institution, teachers, and others engaged in the promotion of knowledge. These memoirs relate chiefly to the calendar year 1905. Page. CONTENTS. Letter from the Acting Secretary, submitting the Annual Report of the Re- PROCEEDINGS OF THE BOARD OF REGENTS. Meetings of December 6, 1904, January 25, and March 6, 1905.. REPORT OF THE EXECUTIVE COMMITTEE for the year ending June 30, 1905. Condition of the fund July 1, 1905... Receipts and expenditures for the year Appropriation for International Exchanges Details of expenditures of same. Appropriation for American Ethnology Details of expenditures of same. Appropriations for the National Museum. Details of expenditures of same. New Measurements of the Distance of the Sun, by A. R. Hinks.. Photographing Lightning with a Moving Camera, by Alex Larsen The Tantalum Lamp, by W. Von Bolton and O. Fuerlein... • Some Refinements of Mechanical Science, by Ambrose Swasey Progress in Radiography, by L. Gastine LIST OF PLATES. SECRETARY'S REPORT: Plates I, II. Smithson mortuary chapel..... Plate III. African ostrich....... IV. Grevy's zebra... V. Terrestrial temperature and solar radiation.. VII. New 15-inch colostat... PHOTOGRAPHS OF LIGHTNING (Larsen): Plates I, II. Photographs of lightning flashes.. Plate III. Apparatus for photographing lightning flashes IV. Photograph of lightning flash .... V. Spectrum photographs of lightning flashes Page. 6 68 70 76 80 82 128 128 128 128 VI. Spectrum of spark. Barometer. PROGRESS IN RADIOGRAPHY (Gastine): Plate I. One of the first radiographs of the hand in 1896 III. Radiograph of a frog.... 128 152 152 156 IV. Zoological and paleontological applications of radiography. VIII. Apparatus and methods for localizing objects in the head VI. In a Liberian coffee plantation. Study of the forest on a Liberian river... 260 VII. Colored map of Liberia 264 GEOGRAPHICAL RESULTS OF TIBET MISSION (Younghusband): Plate I. Bamtso Lake and Bhutan Range. Mount Everest from Khambajong.. 270 II. Frozen waterfall at Dotha. The Yamdok Tso 270 274 274 |