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eighty-six years old, inlroduced into the islands more than 

 thirty-five years ago modern methods of soil tilling and crop 

 har\esting. He was responsible for the establishment of experi- 

 mental stations throughout the islands. Mr. Juan presented to 

 Dr. Lamson-Scribner a testimonial with the inscription "The 

 Filipino farmers owe you a debt of gratitude." (Science) 



Dr. Oscar M. Ball, for thirty-four years professor and head 

 of the department of biology of the Agricultural and Mechanical 

 College of Texas, has retired from active teaching with the title 

 professor emeritus. He will devote his entire time, as curator 

 of the college museum, to his collections of fossil plants, and to 

 the fossil vertebrata assembled by the late Dr. Mark Francis. 

 (Science) 



The departments of botany of Cornell University and the 

 University of Chicago have arranged an exchange of instructors 

 for the winter quarter of the current academic year. Dr. R. A. 

 Laubengayer, of Cornell, and Dr. Paul D. Voth, of Chicago, 

 have been selected for the exchange. Both instructors will be 

 engaged in the teaching of general botany in the large elemen- 

 tary courses. (Science) 



