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Walker (EDMUND MURTON) The North American 

 Dragonflies of the genus Somatochlora, etc. pp. 202 [2] : 

 35 pis. See TORONTO. UNIVERSITY. Studies. Biological 

 Series. No. 26. 8. 1925. 



Walker (E. M.) The Odonata of the Canadian Cordil- 

 lera, etc. pp. 16. 4. Victoria, B.C., 1927. 



Walker (FRANCIS) [For descriptions of some new 

 species of Insects from St. Helena.] See MELLISS (J. C.) 

 St. Helena, etc. 8. 1875. 



Walker (F.) Notes on Francis Walker's types of North 

 American Flies of the family Tachinidae. By J. M. 

 Aldrich. See UNITED STATES NATIONAL MUSEUM. Pro- 

 ceedings, <tc. Vol. 80, art. 10. 8. 1931. 



WALKER (FREDERICK) [Abstract of 12 lectures on] 

 The formation of British coastlines, etc. fol. 50. 4. 1936. 



Swlney Lectures on Geology for 1935-36. 

 Typewritten. 



Walker (F.) [Abstract of 12 lectures on] "Ice Ages." 

 Delivered (February 26th-March 24th, 1937), etc. fol. 39. 



4. [1937.] 



Swlney Lectures on Geology for 1936, delivered in 1937. 

 TypcwTlttcn. 



Walker (F.) [Abstract of 12 lectures on] The Geology 

 and scenery of the West Indies, fol. 51. 4. [1938.] 



Swiney Lectures on Geology for 1937, delivered Feb. 2-28, 1938. 

 Typewritten. 



WALKER (H. W.) Marine Structures; their deteriora- 

 tion and preservation. Report of the Committee on 

 Marine Piling Investigations . . . By W. G. Atwood . . . 

 with the collaboration . . . of H. W. Walker, etc. See 

 NATIONAL ACADEMY OF SCIENCES (Washington, D.C.) 

 NATIONAL RESEARCH COUNCIL. Division of Engineering 

 et Industrial Research. 8. 1924. 



Walker (HENRY) [Geological map of the Finchley 

 Glacial Plateau, on the scale of 4 inches = 1 mile, 

 especially prepared for an excursion of the Geologists' 

 Association to the locality and distributed to the members 

 present by H. Walker.] See FTNCHLEY, Middlesex. 

 [Maps.] s.sh. col. [1873.] 



WALKER (JAMES JOHN) An address read before the 

 Entomological Society of London at the Annual Meeting 

 . . . 1920, etc. (The fringes of Butterfly life.) pp. 29 

 1 map. 8. London, 1920. 



Proc. Eniom. Sue. London, 1919, 1920. 



Walker (J. J.) The Natural History of the Oxford 



district. Contributions edited by James J. Walker . . . 



_) (Presented to the Members of the British Association for 



the Advancement of Science, Oxford Meeting, 1926.) 



pp. viii, 336 : text Must. 



8. Oxford et London [Glasgow printed], 1926. 



Contains, inter alia : 

 Physiography. By H. O. Becklt. 

 Geology : 



General : the Jurassic System, etc. By W. J. Sollas, F.R.S. 



Superficial Deposits. By K. S. Sandford. 



Appendix ; the Corallian Period. By W. J. Arkell. 

 Botany. By G. C. Druce. 

 Ornithology. By F. C. K. Jonrdaln. 

 Entomology : 



Introduction. By J. J. Walker. 



Orthoptera, Neuroptera. etc. By W. J. Lucas. 



Hymenoptera. By A. H. Hamm. 



Coleoptera. By J. J. Walker. 



I * i >ii I " i >t i HI : 



Khopalocera. By J. J. Walker. 

 Macro-Lepldoptera. By J. J. Walker. 

 Mlcro-Lepldoptera. By E. O. R. Waters. 



Dlptrra and Siphonaptera. By A. H. Hamm. 



Hemlptera. By J. Collins. 

 Arachnlda. By A. W. Pickard-Cambrldgc. 

 Mollusc*. By L. W. Grensted. 

 The Hop* Department, Oxford University Museum. By E. B 



Ponlton, F.R.S. 



The Pitt-Rivers Museum. By H. Balfour, F.R.S. 

 The Old Ashmolean Museum, and the Lewis Evans Collection of si; 

 Scientific Instruments. By K. T. Gunther. 



Reissued to the Vlllth International Ornithological 

 Congress 1934. 8. Oxford et London, 1934. 



Contains " Supplementary notes on the Birds of the Oxford District, ^ 

 1926-34. By B. W. Tucker." 



Walker (JOHN) & others. A Geological Map of 

 England and Wales ... By J. & C. Walker and J. A. 

 Knipe. [Scale 1 inch = 9 miles.] See ENGLAND & WALES. ' 

 [Maps.] s.sh. col. 1835. 



and part of Scotland ... By I. & C. Walker. [Scale 

 1 inch = 9 miles.] s.sh. col. 1835 [i.e. 1837 ?] 



WALKER (JOHN) Professor of Natural History, 

 Edinburgh [1731-1803]. Institutes of Natural History. 

 Containing the heads of the lectures in Natural History, k, ( 

 delivered by Dr. Walker, in the University of Edinburgh. 

 pp. 169. 8. Edinburgh, 1792. 



Walker (JOHN) Professor of Natural History, Edinburgh. 

 Essays on Natural History and Rural Economy, etc. 

 pp. [iv] ii, 629. 8. Edinburgh, 1808. ; 



Contains : 



1. A catalogue of some of the most considerable Trees in Scotland. 



2. Natural history of the inhabitants of the Highlands. 



3. History of the Island of Icolumbkil. 



4. History of the island of Jura. 



5. A description of the Basse and its productions. 



6. The history of Shell Marie. 



7. Public lecture, anno 1788, on the utility and progress of Natura 



History and manner of philosophising. 



8. Memoirs of Sir Andrew Balfour. 



9. The natural history of Loch-Leven. 



10. Mineralogical journal from Edinburgh to Elliock. 



11. Mineralogical journal from Edinburgh to London. 



12. Sallcetum. The botanical history and cultivation of Willows. 



13. Mammalia Scotlca. 



14. Statistical account of the parish of Collington. 



15. Memorial concerning the scarcity of grain in Scotland in 1801. 



WALKER (JOHN FRANCIS) Geology and Mineral de- 

 posits of Windermere map-area, British Columbia, etc. 

 pp. [i,] 69 : 8 pis., 3 maps (7 geol. col.), text Must. See 

 CANADA. GEOLOGICAL SURVEY. Memoir No. 148. 



8. 1926. 

 Geological Series. No. 129. 



Walker (J. F.) Geology and Mineral deposits of Salmo 

 Map-area, British Columbia, etc. pp. [iv,] 102 : 3 pis. 



See CANADA. 



[incl. in pagination], 1 map geol. col. 

 GEOLOGICAL SURVEY. Memoir No. 172. 



8. 1934. 



Walker (J. F.) & others. 

 Lardeau Map-area, British Columbia. General Geology 



by J. F. Walker and M. F. Bancroft. 

 Mineral Deposits by H. C. Gunning, pp. iv, 142 : 8 pis., 

 1 map., text Must. 



See CANADA. GEOLOGICAL SURVEY. Memoir No. 161. 



8. 1929. 



WALKER (LEWIS WAYNE) Economic value of preda- 

 tory animals, &c. pp. 15 : text Must. 



8. [San Diego,] 1930. 



WALKER (THOMAS LEONARD) [1867-] Report on the 

 Tungsten Ores of Canada. See CANADA. DEPARTMENT 

 OF MINES. 8. 1909. 



Walker (T. L.) Report on the Molybdenum Ores of 

 Canada. See CANADA. DEPARTMENT OF MINES. 



8. 1911. 



Walker (T. L.) Crystallography; an outline of the 

 geometrical properties of Crystals, pp. xiv, 204 : 1 pi., 

 text Must. 8. New York <fc London, 1914. 



Walker (T. L.) Mineralogy of the H. B. Mine, Salmo, 

 B.C. pp. 25 : text Must. See TORONTO. UNIVERSITY. 

 Studies. Geological Series. No. 10. 8. 1918. 



