236 



Utrecht. Koninklijk Nedeiiandsch Meteorologisch Instituut: 



— — Onweders, optische Verschijnselen, enz. in Nederland in 1905; 



deel XXVI. 



— Physiologisch Laboratorium der Utrecht'sche Hoogeschool: 



— — Onderzoekingen, reeks 5, deel VIII. 



— Provinciaal Utrechtsch Genootschap van Kunsten en Weten- 



schappen: 



— — Aanteekeningen van het verhandelde in de sectie-vergaderingen, 1907. 



— — Verslag van het verhandelde in de algemeene vergadering, 1907. 



IVashington. Carnegie Institution: 



— — Contributions from the Solar Observatory Mt. Wilson, California, 



No 15-20. 



Publications, No 5, vol. I, II; No 9, vol. IV; No 18, 32, 44, 47, 48, 



54 (mit Atlas), 55, 56, 58, 59, 60, 61, 62, 63, 64, 65, 69, 70, 71, 72, 

 76, 77, SO, 81, 83, 84, 85, 91. 



— Department ofCommerce and Labor (Bureau of Standards): 

 Bulletin, vol. 2, No 3; vol. 3, No 1—4; vol. 4, No 1-3. 



— Naval Observatory: 



— — Synopsis of the Report for 1 907. 



— Philosophical Society: 



Bulletin, vol. XV, pp. 1—56. 



— ■ Smithsonian Institution: 

 Annual Report, 1905; 1906. 



— — Smithsonian Contributions to Knowledge (Hodgkins Fund), 



vol. XXXIV, No 1694; vol. XXXV, No 1718. 



— — Smithsonian Miscellaneous Collections, vol. XLVIII, No 1656, 1695 



vol. XLIX, No 1717, 1720, 1721 ; vol. L, No 1703, 1725. 



— U. S. Department of Agriculture : 

 Yearbook, 1906. 



— — Report, 1905—1906. 



— U. S. Geological Survey: 



Annual Report, XXVII, 1905—1906. 



— — Annual Report I. of the New Zealand Geological Survey Department. 

 Bulletin, 279, 283—290, 292, 295—308, 310—315, 317, 318, 320, 



323, 324. 



— — Mineral Resources of the United States, 1905. 



— — Monographs, L. 



— — Professional paper. No 46, 51, 52, 53, 54, 55, 57. 



— — Water-Supply and Irrigations Papers, No 159 — 162, 164, 172 — 175, 



177, 179—183, 185, 187—208. 



— U. S. National-Museum (S m ithsonian I nstitution): 



— — Annual Report of the Board of Regents (Report of the U. S. National 



