This journal provides immediate access to some articles. Volume 6(3); March 1920 Anthropology Anthropometry of the Siouan Tribes PMCID: PMC1084446 Astronomy A Note on the Simple Device for Increasing a Photographic Power of Large Telescopes PMCID: PMC1084445 Genetics Transmission of Eye-Defects Induced in Rabbits by Means of Lens-Sensitized Fowl-Serum PMCID: PMC1084447 Mathematics Note on Geometrical Products PMCID: PMC1084450 Pathology Encephalitis and Poliomyelitis PMCID: PMC1084438 Leptospira Icteroides and Yellow Fever PMCID: PMC1084441 On the Mechanism of Fever Reduction by Drugs PMCID: PMC1084448 Physics A Statistical Method for Studying the Radiations from Radioactive Substances and the X-Rays and Its Application to some γ-Ray Problems PMCID: PMC1084439 On the Nature of the Heat Production in a System of Platinum Black, Alcohol and Air PMCID: PMC1084440 A Kinematical Interpretation of Electromagnetism PMCID: PMC1084443 The Laws of Elastico-Viscous Flow: II PMCID: PMC1084444 Inferences from the Hypothesis of Dual Electric Conduction; the Thomson Effect PMCID: PMC1084449 Physiology Human Retinal Adaptation PMCID: PMC1084442 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||