Mat 25, 1917] 



SCIENCE 



509 



DEDICATION EXERCISES AT THE 



BROOKLYN BOTANIC 



GARDEN 



On April 19-21 exercises were held in connection 

 with the dedication of the completed laboratory 

 building and plant houses of the Brooklyn Botanic 

 Garden. The programs at the various sessions 

 were as follows: 



APRIL 19 



Formal exercises for officials, Garden members 

 and invited guests. Lecture Hall, Mr. Alfred T. 

 White, chairman of the Botanic Garden Governing 

 Committee, presiding. 



Introductory Address, Mr. A. Augustus Healy, 

 president of the Brooklyn Institute of Arts and 

 Sciences. 



Address for the City of New York, Hon. William 

 A. Prendergast, comptroller. 



The social, educational and scientific value of bo- 

 tanic gardens, Professor John Merle Coulter, Uni- 

 versity of Chicago. 



Addresses for the borough of Brooklyn, Hon. 

 Lewis H. Pounds, president of the borough; for 

 the Department of Parks, Hon. Eaymond V. Inger- 

 soU, commissioner of Parks, Brooklyn; for the 

 Brooklyn Botanic Garden, Dr. C. Stuart Gager, di- 

 rector of the Garden. 



10 P.M. 



Eeoeption by the trustees and woman 's auxiliary, 

 inspection of building and view of exhibit on ge- 

 netics, arranged in cooperation with the Cold 

 Spring Harbor Station for Experimental Evolution 

 of the Carnegie Institution of Washington. 



PEIDAT, APEIL 20 



Dr. E. A. Harper, Torrey professor of botany, 

 Columbia University, presiding. 



A vegetative reversion in Portulacca, A. F. 

 Blakeslee and B. T. Avery, Station for Experimen- 

 tal Evolution, Carnegie Institution. 



Intercourses between self-sterile plants, E. M. 

 East, Bussey Institution of Harvard University. 



Evolution by hybridization, E. C. Jeffrey, Har- 

 vard University. 



Binary fission and surface tension in the develop- 

 ment of the Volvox colony, E. A. Harper, Colum- 

 bia University. 



The nucleus as a center of oxidation, W. J. V. 

 Osterhout, Harvard University. 



Modern applications of botany, Melville T. Cook, 

 Eutgers College. 



Mycelium of certain species of Gymnosporan- 

 gium, B. O. Dodge, Columbia University. 



Pathological problems in the distribution of per- 

 ishable plant products, C. L. Shear, Bureau of 

 Plant Industry, U. S. Department of Agriculture. 



Some botanical problems which paleobotany has 

 helped to solve. (Eead by title.) Arthur Hollick, 

 Staten Island Association of Arts and Sciences. 



The ancient oaks of America. (Bead by title.) 

 William Trelease, University of Illinois. 



Further notes on the structural dimorphism of 

 sexual and tetrasporio plants in the genus Galaxa- 



ura, Marshall A. Howe, New York Botanical Gar- 

 den. 



A quantitative study of Eaunkiaer's growth- 

 forms as illustrated by the 400 commonest species 

 of Long Island, N. Y. (Eead by title.) Norman 

 Taylor, Brooklyn Botanic Garden. 



2 P.M. 



Dr. N. L. Britton, director-in-chief, New York 

 Botanical Garden, presiding. 



The relation of crown-gall to other overgrowths 

 in plants, Erwin F. Smith, Bureau of Plant Indus- 

 try, U. S. Department of Agriculture. 



The Uredinales of Oregon, Herbert S. Jackson, 

 Purdue University. 



The importation of phytopathogenes, W. H. 

 Eankin, Cornell University. 



Physiological races of parasitic fungi, George M. 

 Eeed, University of Missouri. 



The genus Endogone, George F. Atkinson, Cor- 

 nell University. 



A method of obtaining abundant sporulation in 

 cultures of Alternaria solani, L. O. Kunkel, Bu- 

 reau of Plant Industry, U. S. Department of Agri- 

 culture. 



The vegetation of our new West Indian Islands, 

 N. L. Britton, New York Botanical Garden. 



Weather conditions and plant development, G. P. 

 Burns, University of Vermont. 



American heaths and pine heaths, John W. 

 Harshberger, University of Pennsylvania. 



Botanical training in the Agricultural College. 

 (Eead by title.) A. Vincent Osmun, Massachusetts 

 Agricultural CoUege. 



A duplicated leaf -lobe factor in Bursa, George 

 H. Shull, Princeton University. 



Isolation as a factor in specific change, Ed- 

 mund W. Sinnott, Connecticut Agricultural CoUege. 



Further studies on the interrelationship of 

 morphological and physiological characters in 

 seedlings of Phaseolus, J. Arthur Harris, Station 

 for Experimental Evolution, Carnegie Institution. 



Inheritance studies in Castor beans. (Eead by 

 title.) O. E. White, Brooklyn Botanic Garden. 



POPULAR SCIENTIFIC PROGRAM 



Mr. Alfred T. White, chairman of the Botanic 

 Garden Governing Committee, presiding. 



Photographing wild flowers for color illustra- 

 tions. Dr. Homer D. House, State Botanist of New 

 York. 



Vacant lot gardening and children's gardens in 

 Brooklyn, Miss Ellen Eddy Shaw, curator of Ele- 

 mentary Instruction, Brooklyn Botanic Garden. 



Problems of conservation in New York state, 

 Hon. George D. Pratt, commissioner of Conserva- 

 tion of New York State. 



APRIL 21 



Dr. H. M. Eichards, Columbia University, pre- 

 siding. 



The synchronism of plant structures, John M. 

 Maefarlane, University of Pennsylvania. 



Contact stimulation, G. E. Stone, Massachusetts 

 Agricultural College. 



The respiratory ratio of cacti, H. M. Eichards, 

 Columbia University. 



The absorption of calcium salts by squash seed- 



