47 



[1921.] 



H (EG BOM, A. G. Geologist Beskrivning over Jamtlands Lan. Sver. geol. 



Undersdkn. Ser. C, no. 140, pp. 1-138, figs., pis. i & ii [geol. maps]. 1920. 

 HGCPFXER, A. Petrographisch-chemische Unfcersuchungen an Gesteinen von 



der Perlenhardt im Siebengebirge. Verh. naturli. Yer. preuss. Rheinl. lxxvi. 



pp. 82-132, figs. 1920 ; & Sitzb. naturli. Yer. preuss. Rheinl. 1919, pp. B 13- 



14. 1920. And A.C. 

 HCEPPXER, — . [Die Aufnahme von Blatt Crefeld.] Jalirb. Tc.-preuss. geol. 



Landesanst. xxxiv. pt. 2, pp. 562-563. 1915. 

 HCERICH, 0. Phialophloios quadratics, eiue neue Lepidophytengattung. Ibid. 



xxxv. pt. 2, pp. 426-430, 1 pi. 1915. 

 2. Bin in Deutschland gefandenes Stiick vom Omphalophloios anglicus. 



Ibid, xxxvi. pt. 2, pp. 96-101, pi. iii. 1915. 

 3. Einige strukturbietende Pflanzenreste aus deutscliem Culm und Devon. 



Ibid. pt. 1, pp. 507-524, pi. xxviii. 1916. 

 HOP F MA XX, C. See Giexorx, M., 2. 



HOGBEX, G. Obit.— See Oldham, R. D., Thomson, G. M. 



HOLDEX, E. P. Specific Gravity and Composition in Iron-Rutile. Am. 3Iin. 



vi. pp. 100-103, fig. 1921. 

 HOLLAXDE, D. Glaciers wiirmiens sur la Commune de Gresse (Isere). Reponse 



aux Observations de M. Kiliax. C. JR. Soc. geol. France, 1918, p. 138. 



1918. See also Kiliax, W., 5. 

 2. Le Xummulitique autochtone de la Balagne, en Corse. 'Bull. Soc. geol. 



France, ser. 4, xix. pp. 171-185, figs. 1920. 

 HOLLIS, E., & E. Xeaveesox. Gault Foraminifera from Ford. Bucks. 



Naturalist, 1921, pp. 235-240. 1921. 

 HOLM, T. Joseph Wixtheop Spexcer. [Obit.] Am. Joum. Sci. ser. 5, ii. 



pp. 363-364. 1921. 



HOLMBOE. J. A. G. Xathoest. [Obit.] Naturen, xlv. pp. 33-40, portrait. 

 1921. 



2. Vettisfossen. Ibid. pp. 321-329, figs. 1 pi. 1921. 



HOLMES. A. Petrographic Methods and Calculations. Pp. i-xix, 1-515, figs. 

 8vo. London, 1921. 



■ 2, & S. Smith. The Wackerfield Dyke, County Durham. [With Analysis by 



H. F. Harwood.] Geol. JIaq. 1921, pp. 440-454, figs. pi. viii. 1921. And 

 A.C. 



HOLMQUIST, P. J. Alfred Ellis Toirxebohm. [Obit.] Yeckoupplagen, 



Stockholm, 1911, haft. 17,- pp. [1-2], portrait. 1911. ~ A.C. 

 2. Orsakerna till Kvartsteglens Svallning. Kemi och Bergsvetenskap, 



Stockholm, 1911, ,haft. 3, 'pp. [1-5], figs. 1911. A.C. 

 3. Pa hvad Satt kan Petrograrien vara Jarnmalmsanrikningen till Gagn. 



Ibid. haft. 11, pp. [1-7], figs. 1911. A.C. 

 4. Zur Morphologie der Gesteinsquarze.. Geol. Foren. Stockh. Forh. xxxvii. 



pp. 681-687, figs. 1915. And A.C. 

 5. Swedish Archaean Structures and their Meaning. Bull. Geol. Inst. Uniu. 



JJpsala, xv. pp. 125-148, figs. [geol. sketch-maps]. 1916. And A.C. 

 ■ 6. Das Lotrohr als Pyrometrischer Apparat. Geol. Foren. Stockh. Forh. 



xxxix. pp. 709-720, fig. pi. x. 1917. And A.C. 

 7. Charles R. vax Hise. [Obit.] Ibid. xli. pp. 202-204. 1919. And 



A.C. 



8. Xagra Ord om de Sedimentara Seveskiffrarnas Sammansattning och 



Geologiska Stallning. Ibid. pp. 347-368, fig. 1919. And A.C. 



9. Die Havte von Mischkristallen. Ibid. xlii. pp. 393-412. 1920. 



10. Stockholmstraktens Berggrundstektonik. Ibid, xliii. pp. 216-240. figs. 



1921. And A.C. 



11. Anvisningar till Geologiska Exkursioner inom Stockholm och dess 



Kusttrakter. Ibid. pp. 412-424. 1921. 

 HOLMSEN, G. Gudbrandsdalens Br;esj6. [With English Summary.] Gorges 



geol. Undersok. no. 83 (1918), I, pp. 1-25, figs. pi. i. 1919. 

 2. Xordfollas Omgivelser. [With English Summarv.] Ibid. no. 83 (1919), 



H, pp. 1-18, pi. i. 1919. 

 HOLTEDAHL, O. On the Occurrence of Structures like Walcott's Algonkian 



Algae in the Permian of England. Am. JTourn. Sci. ser. 5, i. pp. 195-206, figs. 



1921. 



2. Om Geologisk Tidsregning. Naturen, xlv. pp. 129-147, fig. 1921. 



3. De Xorske Grcensetrok mellum Fsemund og Trysil. Geol. Foren. Stockh. 



Forh. xliii. pp. 77-84. 1921. 

 - — —4. The Scandinavian ' Mountain Problem.' Quart. Joum. Geol. Soc. lxxvi. 



pp. 387-403, figs. [geol. sketch-maps]. 1921. 



