Apeil 28, 1922] 



SCIENCE 



453 



cine has chosen December 26, the eve of the 

 Pasteur Institute's celebration, in order that 

 the same guests may participate in the two 

 ceremonies. At the session wUl be presented 

 data showing the progress accomplished since 

 Pasteur's days in general biology, medicine, 

 surgery, obstetrics, veterinary medicine and 

 hygiene. Members of the academy who have 

 been chosen to deliver addresses are : Widal, 

 medicine; Delbet, surgery, Wallich, obstetrics; 

 Barrier, veterinary medicine, and Calmette, 

 hygiene. 



The United States National Museum has re- 

 cently secured by purchase, through the co- 

 operation of the United States Department of 

 Agriculture, the large private herbarium of 

 Dr. Otto Buchtien, formerly director of the 

 Museo Nacional, La Paz, Bolivia, built up by 

 him through many years of botanical explora- 

 tion in South America and through exchanges 

 with institutions in many parts of the world. 

 The herbarium consists of approximately 

 45,000 specimens, and is notable for its large 

 proportion of tropical American species, par- 

 ticularly of the floras of Bolivia, Chile, Argen- 

 tina and Paraguay. 



The thirty-fourth meeting of the German 

 Society of Internal Medicine will be held at 

 A¥iesbaden from April 24 to April 27, under 

 the presidency of Professor L. Brauer. The 

 chief subjects for discussion will be jaundice, 

 introduced by Professor Eppinger, of Vienna, 

 and the hypophysis, introduced by Professor 

 Biedl, of Prague. 



The American Medical Association an- 

 nounces that the committee on therapeutic re- 

 search of the Council on Pharmacy and Chem- 

 istry will consider applications for grants to 

 assist research in subjects which, in the opinion 

 of the committee, are of practical interest to 

 the medical profession, and which research 

 might not otherwise be carried out because of 

 lack of funds. Requests should state thB spe- 

 cific problem which is to be studied, the quali- 

 fications of the investigator, the facilities avail- 

 able to him, and, if work is to be undertaken in 

 an established research institution, the name 

 of the individual who will have general super- 

 vision. The committee will also appreciate 

 offers from research workers to undertake in- 



vestigations of questions which may be sug- 

 gested by the council. Applications should be 

 addressed to Chairman, Therapeutic Research 

 Committee, Council on Phannacy and Chem- 

 istry, 535 North Dearborn Street, Chicago, 

 Illinois. 



It is announced in La GSographie for No- 

 vember 1921 that an attempt to cross the Sa- 

 hara with twelve motor vehicles will shortly be 

 made. The starting-point will be Tuggurt, the 

 terminus of the Algerian railway, and the pro- 

 posed route leads by Insalah, the Hogger re- 

 gion, and Adar of the Iforas, to Bureni on 

 the Niger, 200 kilometers east of Timbuktu. 

 The leader of the expedition will be Command- 

 ant Lafargue, and it will include a dozen mem- 

 bers representing various government depart- 

 ments and other interests, among them being a 

 cinema operator. It is hoped that the difficulty 

 caused by the evaporation of the motor spirit 

 in so torrid a climate has been overcome, but 

 it is pointed out that there is a vast difference 

 between the exceptional use of motor traction 

 in this region for a special purpose, which may 

 be feasible, and its regular commercial use. 



De. Walter Libbt, the historian of science, 

 is delivering a novel series of lectures to the 

 Industrial Fellows of the Mellon Institute of 

 Industrial Research, the faculty members of 

 the University of Pittsburgh, and the students 

 of the graduate school of the university. The 

 aim of this series of discourses is to discover 

 the mental conditions of successful research. 

 Dr. Libby takes account of certain phases of 

 individual (or differential) psychology, deals 

 with some of the more fruitful logical processes, 

 and considers the means of stimulating the 

 spirit of scientific discovery. The illustrative 

 material is drawn from the records of the 

 progress of chemistry and other sciences. The 

 following is an outline of the course of lectures : 

 (1) The Scientific Imagination; (2) The 

 Hypothesis; (3) Conceptual Thinking; (4) 

 Induction (contrasted with Deduction); (5) 

 Reasoning by Analogy; (6) The Nature of 

 Cause; (7) Experiment and Observation; (8) 

 Scientific Laws; (9) Social Stimulation of 

 Investigation; (10) The Suggestive Value of 

 the Industries; (11) The Classification of the 

 Sciences; (12) The Genetic Method. Dr. 



