LIST OF PLATES. 



Secrktary's Beport: Page. 



Plates I, II. Smithson mortuary chapel 6 



Plate III. African ostrich 68 



IV. Grevy's zebra 70 



V. Terrestrial temperature and solar radiation 76 



VI. Absorption of solar envelope 80 



VII. New 15-inch ccelostat 82 



Photographs op Lightnincj (Larsen): 



Plates I, II. Photographs of lightning flaslies 128 



Plate III. Apparatus for photographing lightning flashes 128 



IV. Photograph of lightning flash _ 1 28 



V. Spectrum photographs of lightning flashes 1 28 



VI. Spectrum of spark. Barometer 128 



Progress ix Radiography (Gastine): 



Plate I. One of the first radiographs of the hand in 1896 1.52 



II. Radiograph of the hand in 1897 152 



III. Radiograjih of a frog 156 



IV. Zoological and paleontological applications of radiography 1.56 



V. Radiographs of child's jaw and of arteries of fingers 158 



VI. Radiograph of muscular system of the hand 158 



VII. Radiograph of the arterial system of the hand 162 



VIII. Apparatus and methods for localizing objects in the head 162 



History of Photography (Hunt): 



Plate I. Portrait of Herschel; uranium print 16.3 



II. Gold chrysotype print 168 



III. Silver chrysotype print 168 



IV. Chromatype print 180 



The Cullinan Diamond (Hatch and Corstorphine): 



Plates I, II. Photographs of Cullinan diamond 214 



Liberia (Johnston): 



Plate I. Providence Island. Street in Monrovia 248 



II. Hon. G. W. Gibson. President Barclay 248 



III. Vai women. Devil dance 250 



IV. Mandigo family. Surf on the Liberiau beach 250 



V. Liberiau colonel of militia. Americo-Liberian ladies 260 



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 Khamba- 



jong 270 



II. Frozen waterfall at Dotha. The Yamdok Tso 270 



HI. The Potala. Panorama of Lassa from Ba-mo-ri 274 



IV. The Potala from Ba-mo-ri. The Lassa council 274 



Vll 



