26 Report of the President 



April 3. — Child Labor in America Owen R. Lovejoy 



" 10. — The Children's Court Ernest K. Coulter 



" 17. — The Processes of American Government Franklin A. Rose 



" 24. — The City Beautiful, or the Planning and Embellishment of Cities, 



Arthur Alexander Stoughton 



A Course of Eleven Lectures on "Inorganic Chemistry," 

 by William L. Estabrooke, Ph.D. 



October 9. — Physical and Chemical Change 



" 16. — Oxygen and Ozone 



" 23. — Hydrogen and Hydrogen Peroxide 



" 30. — Water 



November 6. — Chlorine and Hydrochloric Acid 



" 13. — Fluorine, Bromine and Iodine 



" 20. — Nitrogen and Its Oxides ; Nitric Acid and Ammonia 



" 27. — Carbon and Some of Its Compounds 



December 4. — Carbon Dioxide and Ventilation 



" II. — The Atmosphere 



" 18. — Combustion and the Flame 



HOSPITALITY TO SCIENTIFIC SOCIETIES 



Many are the requests that are received by the Museum 

 from various scientific societies and organizations for the use 

 of the lecture and conference rooms, and so far as it is con- 

 sistent with the aims of the institution, these requests have 

 been granted. 



On February twelfth was held the celebration of the one 

 hundredth anniversary of the birth of Charles Robert Darwin 

 and the fiftieth anniversary of the publication of " The Origin 

 of Species." At this time there was unveiled a bronze bust 

 of Darwin, the work of Mr. William Couper and the gift of 

 the New York Academy of Sciences. The presentation ad- 

 dress was made by Mr. Charles Finney Cox, the Academy's 

 president, and the bust was accepted on behalf of the Trus- 

 tees of the Museum by President Henry Fairfield Osborn. 

 The exercises were held in the Synoptic Hall, which, in view 

 of the permanent installation of the bust and of the exhibit of 

 the zoological material so closely associated with his name, 

 was rededicated by the Trustees as the '* Darwin Hall of In- 

 vertebrate Zoology." 



Another gathering of note was the Twenty-seventh Stated 

 Meeting of the American Ornithologists' Union, one of the 



