VOLUME 38. 



1. Mabeet, C F. — An Apparatus for Continuous Vacuum Distillation, pp. 1-6. June, 1902. 10c. 



2. Thaxter, R.— Preliminary Diagnoses of New Species of Laboulbeniaceae. — V. pp. 7-58. 



June, 1902. 45c. 



3. Johnston, J. R. — On Cauloglossum transversarium Frjes (Bosc). pp. 59-74. 1 pi. July, 



1902. 20c. 



4. Robinson, B. L. (With the collaboration of specialists.) — Flora of the Galapagos Islands. 



pp. 75-270. 3 pis. October, 1902. $2.40. 

 6. Richards, T. W. — Concerning Gas-Analysis by Measurement in Constant Volume under 

 Changing Pressure, pp. 271-279. October, 1902. 10c 



6. Mabery, C. F., and Shepherd, L. — A Method for Determining the Index of Refraction of Solid 



Hydrocarbons with the Pulf rich Refractometer. Index of Refraction of the Solid Hydro- 

 carbons in Petroleum, pp. 281-290. October, 1902. 10c. 



7. Richards, T. W. — The Significance of Changing Atomic Volume. III. —The Relation of 



Changing Heat Capacity to Change of Free Energy, Heat of Reaction, Change of Volume, 

 and Chemical Affinity, pp. 291-317. October, 1902. 35c. 



8. Richards, T. W., and Stull, W. N. — The Speed and Nature of the Reaction of Bromine 



upon Oxalic Acid. pp. 319-337. October, 1902. 25c. 



9. Dunkel, O. — Regular Singular Points of a System of Homogeneous Linear Differential 



Equations of the First Order, pp. 339-370. October, 1902. 50c. 



10. Porter, R. A. — The Influence of Atmospheres of Nitrogen and Hydrogen on the Arc Spectra 



of Iron, Zinc, Magnesium, and Tin, Compared with the Influence of an Atmosphere of 

 Ammonia, pp. 371 379. November, 1902. 15c. 



11. Palache, C, and Fraprie, F. R . — 1. Babingtonite from Somerville, Mass. 2. Babingtonite 



from Athol, Mass. pp. 381-393. 2 pis. December, 1902. 25c. 

 12 Crew, H., and Baker, J. C. —On the Thermal Development of the Spark Spectrum of Carbon, 

 pp. 395-406. December, 1902. 15c. 



13. Bichards, T. W., and Stull, W. N. — The Universally Exact Application of Faraday's Law. 



pp. 407^13. December, 1902. 10c. 



14. Richards, T. W., and Mark, K. L. — An Apparatus for the Measurement of the Expansion 



of Gases by Heat under Constant Pressure, pp. 415-428. December, 1902. 20c. 



15. Richards, T. VT., and Wells, R. C. —The Transition Temperature of Sodic Sulphate Referred 



anew to the International Standard, pp. 429-440. December, 1902. 15c. 



16. Richards, T. W., and Archibald, E. H. — A Revision of the Atomic Weight of Caesium. 



pp. 441^170. January, 1903. 35c. 



17. Van der Vries, J. N.— On the Multiple Points of Twisted Curves, pp. 471-532. 1 pi. 



January, 1903. 75c. 



18. Castle, W. E. — Mendel's Law of Heredity, pp. 533 548. January, 1903. 20c. 



19. Peirce, B. O. — On the Temperature Coefficients of Magnets made of Chilled Cast Iron. 



pp. 545-556. February, 1903. 10c. 



20. Nichols, E. F., and Hull, G. F. — The Pressure due to Radiation, pp. 557-599. April, 



1903. 60c. 



21. Castle, W. E., and Allen, G. M. —The Heredity of Albinism, pp. 601-022. Apr., 1903. 25c. 



22. Morse, H. W., and Pierce, G. W. — Diffusion and Supersaturation in Gelatine, pp. 623-648. 



May, 1903. 40c. 



23. Peirce, B. O. — On the Thermal Conductivities of Certain Pieces of Rock from the Calumet 



and Hecla Mine. pp. 649-660. May, 1903. 15c. 



24. Peirce, B. O. — On Families of Curves which are the Lines of Certain Plane Vectors either 



Solenoidal or Lamellar, pp. 661-678. May, 1903. 20c. 



25. Trowbridge, J. — The Spectra of Gases and Metals at High Temperatures, pp. 679-6S8. 



1 pi. May, 1903. 20c. 



26. Records of Meetings; Biographical Notices; Officers and Committees; List of Fellows and 



Foreign Honorary Members ; Statutes and Standing Votes, etc. 60c. 



(Contintted on page 3 of Cover.) 



