4 Publications of Carnegie Institution of Washington 



34. Wieland G. R. American Fossil Cycads. Quarto. 



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35. (See Nos. 65 and 97.) Coblentz, W. W. Investigations of Infra-red Spectra. 



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36. Stevens, N. M. Studies in Spermatogenesis with especial reference to the 



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37. Harper, R. A. Sexual Reproduction and the Organization of the Nucleus in 



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38. McLaughlin, A. C., W. A. Slade, and E. D. Lews. Writings on American 



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39. Handbook of Learned Societies and Institutions America. Octavo, vin+592 



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40. (See Nos. 62 and 96.) Barus, Carl. The Nucleation of the Uncontaminated 



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41. Dorsey, G. A. Traditions of the Caddo. Octavo, 136 pages . . $0.50 



42. Atwater, W. O., and F. G. Benedict. A Respiration Calorimeter with Ap- 



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43. Peters, C. H. F. Heliographic Positions of Sun-Spots, observed at Hamilton 



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44. Scripture, E. W. Researches in Experimental Phonetics. The Study of 



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45. Furness, Caroline E. Catalogue of Stars within two degrees of the North 



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46. Adams, F. D., and E. G. Coker. An Investigation into the Elastic Constants 



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47. Mayer, A. G. Rhythmical Pulsation in Scyphomedusae. Octavo, 62 pages, 



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Castle, W. E., and Alexander Forbes. Heredity of Hair-length in 

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50. Livingston, Burton E. The Relation of Desert Plants to Soil Moisture and 



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51. Stevens, N. M. Studies on the Germ-Cells of Aphids. Octavo, 28 pages, 4 



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53. Muller, W. Max. Egyptological Researches: 



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