REPORT OF THE PRESIDENT, 1920. 21 



PUBLICATIONS. 



The publication of 8 volumes has been authorized by the 

 Executive Committee during the year, at an aggregate estimated 

 T, u.. .. A .u cost of $29,350.00. The following Hst gives the 



Publications Author- ' ,. i it- 



ized and Issued titles and names of authors of the publications 

 uring e ear. jgg^^^ during the 3' ear; it includes 22 volumes, 

 with an aggregate of 3,840 octavo pages and 3,710 quarto 

 pages. Sixteen additional volumes are now in press. 



List of publications issued during the year. 



Year Book, No. 18, 1919. Octavo, xvi+3S0 pages, 2 plates, 4 figs. 

 Index Medicus, Second Series, Vol. 17, 1919. Octavo, 1,167 pages. 

 Seventh and Eighth Editions of an Illustrated Pamphlet on the Scope and Organization of the 



Carnegie Institution of Washington. Octavo, 55 pages, 42 plates. 

 No. 53. Muller, W. Max. Egj'ptological Researches. Vol. 3, The Bilingual Decrees of 



Philse. Quarto, 88 pages, 41 plates. 

 No. 85. Hasse, Adelaide R. Index of Economic Material in the Documents of the States of 

 the United States. Quarto. Pennsylvania (1790-1904). Parti, A to E, pp. 

 1-810. 

 No. 161. Moulton, F. R., in collaboration with Daniel Buchanan, Thomas Buck, Frank L. 

 Griffin, William R. Longley, and William D. MacMillan. Periodic Orbits. 

 Quarto, xiv+524 pages, 50 figures. 

 No. 185. Hasse, Adelaide R. Index to United States Documents relating to Foreign Affairs, 



1828-1861. In 3 parts. Quarto. Part II, I to Q, pages 795-1331. 

 No. 219. Morley, Sylvanus G. The Inscriptions at Copan. Quarto, xiv +644 pages, 34 plates, 



93 figures. 

 No. 248. Britton, N. L., and J. N. Rose. The Cactaceae. Descriptions and Illustrations of 

 Plants of the Cactus Family. Quarto, in 4 volumes. Vol. 2, vii+239 pages, 

 40 plates, 305 figures. 

 No. 256. Dickson, L. E. History of the Theorj' of Numbers. Octavo. Vol. 2, Diophantine 



Analysis, xxv +803 pages, 12 figures. 

 No. 272. Contributions to Embryology. Nos. 27 to 46. Vol. IX. Quarto, 561 pages, 64 plates, 

 78 text figures., 14 charts. 

 This book contains the following papers: 



Macklin, Charles C. The Development and Function of Macrophages in the Repair 

 of Experimental Bone-wounds in Rats vitally stained with Trypan-blue. (Con- 

 tribution No. 27.) 46 pages, 4 plates. 

 Duesberg, J. Cytoplasmic Structures in the Seminal Epithelium of the Opossum. 



(Contribution No. 28.) 38 pages, 2 plates, 5 text figures. 

 Corner, George W. On the Widespread Occurrence of the Reticular Fibrils pro- 

 duced by Capillary Endothelium. (Contribution No. 29.) 9 pages, 2 plates. 

 Wheeler, Theodora. Variability in the Spinal Column as regards Defective Neural 

 Arches (Rudimentary Spina Bifida). (Contribution No. 30.) 13 pages, 11 figures. 

 Van der Stricht, O. The Arrangement and Structure of Sustentacxilar Cells and 

 Hair Cells in the Developing Organ of Corti. (Contribution No. 31.) 34 pages, 

 4 plates. 

 Retzer, Robert. The Sino-ventricidar Bundle: A Functional Interpretation of 



Morphological Findings. (Contribution No. 32.) 14 pages, 1 plate. 

 Jenkins, George B. A Study of the Superior Olive. (Contribution No. 33.) 16 



pages, 2 plates, 1 text figure. 

 Schultz, Adolph H. The Development of the External Nose in Whites and Negroes. 



(Contribution No. 34.) 18 pages, 1 plate, 7 figures. 

 Lewis, Margaret Reed. Muscular Contraction in Tissue Cultures. (Contribution 



No. 35.) 22 pages, 2 plates, 6 text figures. 

 Sabin, Florence R. Studies on the Origin of Blood-vessels and of Red Blood- 

 corpuscles as seen in the Living Blastoderm of Chicks during the Second Day 

 of Incubation. (Contribution No. 36.) 50 pages, 6 plates, 1 text figure. 

 Bean, Robert B. Notes on the Post-natal Growth of the Heart, Kidneys, Liver, and 

 Spleen in Man. (Contribution No. 37.) 22 pages, 8 text figures. 



