October 20, 1911] 



SCIENCE 



507 



LECTUBES ON SOLAR AND TEBBESTEIAL 

 PETSICS 



A COURSE of lectures will be given between 

 October 17 and 28, 1911, in the Physical Lab- 

 oratory of the Johns Hopkins University, by 

 Arthur Schuster, F.E.S., honorary professor 

 of physics in the University of Manchester. 



The object of the lectures will be to discuss 

 the eosmical applications of recent advances 

 in physics, to explain the methods of examin- 

 ing correlations between solar and terrestrial 

 phenomena, and to specify the problems of 

 solar and terrestrial physics which seem to 

 call for special investigation. 



The following headings are intended to il- 

 lustrate the general scope of the lectures, but 

 do not necessarily indicate the order in which 

 the subjects will be taken : 



1. Preliminary Considerations. The pon- 

 deromotive forces concerned (gravitation, 

 radiation pressure, electrostatic forces). The 

 laws of radiation (adiabatic, isothermal and 

 radiostatic equilibrium). 



2. The Sun. The interior of the sun, con- 

 ditions at the surface due to ejection of elec- 

 trons. Spectroscopic phenomena and their 

 interpretation. The laws of solar rotation. 

 The sun's corona. Sun-spots and their peri- 

 odicity. 



3. Inierplanetarp Space. Effects of small 

 quantities of matter on thermal and electric 

 conductivity. 



4. The Earth. Our knowledge of its in- 

 terior constitution. The age of the earth. 

 The principal phenomena of terrestrial mag- 

 netism and atmospheric electricity. 



5. The Earth's Atmosphere — more especially 

 with regard to its condition near its upper 

 limit. 



6. General methods of investigating peri- 

 odicities. Briickner's " 35-year meteorolog- 

 ical cycle " shown to be non-existent. Lunar 

 effects. Connection between sun-spots and 

 terrestrial phenomena. 



DB. CSBISTIAN ABCHIBALD HEBTEB 

 In response to an invitation issued by the 

 President of the Johns Hopkins University 

 and the Committee on the Herter Memorial 



Lectureship, a meeting in memory of the late 

 Dr. Christian Archibald Herter was held in 

 the lecture room of the Physiological Labora- 

 tory on Thursday, October fifth, 1911, at 

 three p.m. 



Drs. Welch, Halsted, Abel, Dunham and 

 Flexner spoke of various aspects of the life 

 and work of Dr. Herter and paid tribute to 

 his character and his serviees to medical sci- 

 ence. 



The following minute was adopted and was 

 subsequently read to the audience assembled 

 at four o'clock to hear Professor Kossel's sec- 

 ond Herter lecture, who expressed their re^ 

 spect and approval by a rising vote : 



The medical faculty and other members of the 

 Johns Hopkins University, as well as all assembled 

 at the delivery of the sixth series of lectures upon 

 the Herter Foundation, desire to place upon record 

 their sense of the great loss sustained by American 

 medicine and by medical science in the death of 

 Dr. Christian Archibald Herter on December fifth, 

 1910. 



The initiation of Dr. Herter 's fruitful activity 

 as a scientific investigator by his work as a grad- 

 uate student in this university and his active in- 

 terest in the development of this medical school are 

 sources of especial gratification to the university. 

 Upon this occasion especially we recall with grate- 

 ful appreciation his generous benefaction in found- 

 ing, in association with Mrs. Herter, a lectureship 

 which has been and will continue to be a fountain 

 of inspiration and instruction to our faculty and 

 students and to the medical profession. 



In the life and work and character of Dr. Herter 

 we recognize the manifestation of rare gifts of 

 intellect and of heart and high-minded devotion to 

 the highest ideals of our profession and of scien- 

 tific medicine. By valuable contributions to knowl- 

 edge, by wisely directed and generous material 

 aid in the promotion of medical and biological 

 science, by judicious counsel and active effort and 

 by the widely felt influence of a richly endowed, 

 and singularly attractive and cultivated person- 

 ality Dr. Herter rendered memorable service to 

 American medicine in behalf of higher profes- 

 sional standards and wider recognition and culti- 

 vation of medical science. 



In this university and elsewhere the memory of 

 Christian Archibald Herter will be cherished not 

 only as that of a generous benefactor, but also 

 "as a presence to be felt and known" exemplify- 



