pmc logo imageJournal ListSearchpmc logo image
Logo of pnasPNAS Home page.PNAS Editorial BoardPNAS AboutPNAS SubscriptionsPNAS Info for Authors
This journal provides immediate access to some articles.
Other Issues:  previous | next | latest | archive
Volume 31(10);  October 1945
The cover of the journal
Genetics
Structure of the Salivary Gland Chromosomes of Diptera
Hans Ris and Helen Crouse
Proc Natl Acad Sci U S A. 1945 October; 31(10): 321–327.
PMCID: PMC1078834
Mathematics
A Topology for the Set of Primitive Ideals in an Arbitrary Ring
N. Jacobson
Proc Natl Acad Sci U S A. 1945 October; 31(10): 333–338.
PMCID: PMC1078836
Converse of Ptolemy's Theorem on Stereographic Projection
Edward Kasner and John De Cicco
Proc Natl Acad Sci U S A. 1945 October; 31(10): 338–342.
PMCID: PMC1078837
Pathology
The Spread of an Epidemic
Edwin B. Wilson and Jane Worcester
Proc Natl Acad Sci U S A. 1945 October; 31(10): 327–333.
PMCID: PMC1078835
Journal Matter
Original table of contents page
| PDF–19K |
Administrative content — journal masthead, notices, indexes, etc.
Other Issues:  previous | next | latest | archive
Articles from Proceedings of the National Academy of Sciences of the United States of America are provided here courtesy of
National Academy of Sciences