49 



ISSEL, A. 2. Delia Giadaite seeondo le recenti Osservazioni dell' Ing. S. Fkanchi. 



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nat. xiii. pp. 1-11. 1902. A.C. 

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pp. 1-28, figs. 1902. A.C. 

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pp. 1-15. 1903. And A.C. 

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110. 1903. 



ITES, P. Uebev die Abhangigkeit der Absorption des Liclites von der Farbe in 



krystallisirten Korpern. Pp. 1-83. 8vo. Gottingen, 1903. 

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Nat. Moscou, n. s., xvi. pp. 507-510. 1903. 

 JACKSON, C. F. V. Some Mines and Mineral-Deposits at the Heads of the 



Brisbane, Burnett, and Mary Rivers. Geol. Surv. Queensl., Publ. no. 169, 



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 — ■ — 2. The Opal-Mining Industry and the Distribution of Opal-Deposits in 



Queensland. Ibid. no. 177, pp. 1-31, pis. i-xxii & 1 geol. map. 1902. 

 3. Report on a Visit to the West Coast of Cape- York Peninsula and some 



Islands of the Gulf of Carpentaria; also Reports on the Horn-Island and 



Possession-Island Goldfields and the recent Prospecting of the Cretaceous Coals 



of the Cook District. Ibid. no. 180, pp. 1-27, pis. i-xii & 1 maps. [Geol. maps.] 



1902. 



JACKSON, J. F. In Upper Michigan. Mines Sf Minerals, Scranton, xxiii. 



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 JACOB, C. Sur la Signification du Gisement cenomanien a Ichthyosarcolithes et a 



Faune du Maine de Saint-Laurent pres Vacheres (Basses-Alpes). C. R. Acad. 



Sci. Paris, cxxxvi. pp. 703-705. 1903. 

 JACOB, H. See Ficheue, E., 1. 



JACZEWSKI, L. Sur les Gisements d'Or dans le District minier de lTenissei du 



Nord. E.rpl. geol. Reg. aurif. de la Siberie : Region aurif. de VIenissei, no. 4, 



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geol. Elsass-Lothr. i. pp. 215-239. 1888. 

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1903, i. pp. 109-131, figs. 1903. 

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Gesellsch. liv. ProtoJc. pp. 127-133, tigs. i903. 

 . See also Ruedemann, R., 2. 



. JAHN, J. J. Ueber die Etage H. im mittelbohmischen Devon. Verb. Tc-k. geol- 



Reichsanst. 1903, pp. 73-79. 1903. 

 JAMESON, H. L. The Formation of Pearls. Nature, lxvii. pp. 281-283, figs. 



1903. 



JANSSON, M., & J. Westman. Quelques Recherches sur la Couverture deNeige. 



Bull. Geol. Inst. Upsala, v. pp. 234-260. 1902. 

 JAQUET, J. B. See Card, G. W., 2 ; and Pittman, E. F., 1. 

 -JAYARAM, B. Report on Geological Work in the Kolar, Bangalore, and Mysore 



Districts during 1900 and 1901. Rec. Mijsore Geol. Dep. iii. pp. 163-203. 



1903. 



JEANS, J. H. On the Vibrations and Stability of a Gravitating Planet. Phil. 



Trans. Roy. Soc. cci. pp. 157-184, figs. 1903. 

 JEHU, T. J. A Bathymetrical and Geological Study of the Lakes of Snowdonia 



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viii. I Sketch-maps.] 1902. 

 JENKINS, H. C. Rocks and Ore-Occurrences at Bethanga and Lower Mitta 



Mitta. Proc. Roy. Soc. Vict. n. s. xvi. pp. 1-11, pi. i. 1903. 

 JENNINGS, A. V. See Obit., Anon. 8 ; and Cole, G. A. J., 9. 

 JENSEN, H. I. Possible Relation between Sunspot-Minima and Volcanic Eruptions. 



Journ. Roy. Soc. N.S.W. xxxvi. pp. 42-60, fig. 1902. 

 JENTZSCH, A. Ueber den Untergrund norddeutscher Binnenseen. Zeitschr. 



deutsch. geol. Gesellsch. liv. Protok. pp. 144-148. 1903. 

 2. Ueber Bergsturze im norddeutschen Flachlande. Ibid. pp. 196-202. 



1902. 



3. Die geologische Landesuntersuchung von Grossbritannien und Irland. 



Zeitschr. f. pralct. Geol. xi. pp. 4-15, figs. 1903. And A.C. 



E 



