24 Report of the President 



Columbia University Lectures 

 In cooperation with the Museum 



A series of lectures on Light, arranged by Columbia Uni- 

 versity and begun in 190S, was continued as follows (Dr. 

 Richard C. Maclaurin, lecturer) : 



January 6. — VI. The Exact Laws of Reflection and Refraction and Their 

 Bearing on the Construction of Optical Instruments 

 " 13. — VII. Optical Properties of Crystals 



" 20. — VIII. The Principle of Interference and Its Explanation of 

 Various Colour Phenomena 



" 27. — IX. The Measurement of Light Waves and the Theory of 

 Diffraction 



Februarys. — X. Some Relations Between Light and Electricity 



Four Lectures on Biology, arranged by the Biology Departments of the 



Normal College and the High Schools of Manhattan, given 



on Thursday afternoons : 



January 14 and May 20. — American Forests and Their Uses 



George H. Sherwood 



February 18. — Our Atlantic Fisheries Hermon C. Bumpus 



March 18. — Public Health Josephine Baker 



April 15. — Natural History of Animals Henry E. Crampton 



Special Lectures 



Under the auspices of the New York Academy of Sciences 



In cooperation with the Museum 



February 4. — Austria and its Beauties Felix Leibinger 



Under the auspices of the Lincoln Centenary Committee of the 



City of New York 



February 12. — Abraham Lincoln W. W. Ellsworth 



Board of Education Lectures 



In cooperation with the Museum 



Tuesday evenitigs 



A Course of Eight Lectures on "Asia " 



January 5. — The East and the Vv'^est and Their Different Ideals, 



Ian C. Hannah 



" 12. — China's Everlasting Empire 



" 19. — England's Eastern Empire 



" 26. — The Russian March Across Asia 



February 2. — Japan's Transformation 



" g. — America as an Asiatic Power 



" 16. — World Organization Mrs. Lucia Ames Mead 



" 23. — Mohammed and Mohammedanism Isya Joseph 



