August 15, 1889] 



NA TURE 



375 



Variable Stars. 



Star. 



Algol , 



« Librae 

 U Ophiuchi.., 



X Sagittarii.. 

 W Sagittarii 

 T Herculis ... 

 U Sagittarii.., 



^8 Lyrse 



R Lyrae 



U Aquilas .., 

 S Sagittse .. 



T Vulpeculae 



R.A. 



h. m. 



3 i-o.. 



14 551 •• 

 17 io*9 .. 



Decl. 



40 32 N. 

 858. 

 I 20 N. 



17 40-6 .. 27 47 S. 



17 57'9 ••• 29 35 S. 



18 4*9 ... 31 o N, 

 18 256 ... 19 12 S. 



h. m. 



Aug. 22, 3 32 »l 



,, 22, I 14 m 



,, 23, 3 10 »» 



„ 23, 23 18 m 



,, 19, o o M 



,, 23, 4 o m 



18 46*0 .. 



18 52-0 .. 



19 23-4 .. 

 19 5l'o .. 



33 14 N. 



43 48 N. 



7 16 S. 



16 20 N. 



20 46*8 ... 27 50 N. 



il/signifies maximum ; m minimum ; m^ secondary minimum. 



Meteor Showers. 

 R.A. Decl. 



Near 7 Andromeda ... 26 ... 42 N, ... Swift ; streaks. 

 ,, 7 Camelopardalis ... 55 ... 71 N. ... ,, ,, 



,, Tf Draconis 290 ... 62 N. ... Slow. 



THE CONGRESS OF GERMAN NATURALISTS 

 AND PHYSICIANS. 



T^HE sixty-second Congress of German Naturalists and Phy- 

 sicians will be held, as we have alieady announced, at 

 Heidelberg, from September 18 to 23 ; and the meeting promises 

 ;tobe one of great interest. Dr. G. Quincke and Dr. W. Kiihne, by 

 whom the various iiecessary ariangements are being made, have 

 issued a programme, and take the opportunity to say that all 

 naturalists, physicians, and students of the natural sciences, who 

 may choose to attend the meeting, will be cordially welcomed. 

 Although by its statutes the Congress consists only of Germans, 

 foreign investigators, by being present and taking part in the 

 proceedings, give much pleasure to their German colleagues. 



The three general meetings will be held in the great hall of the 

 Heidelberg Museum on September 18, 20, and 23. To the 

 second of these general meetings, on September 20, a scheme 

 embodying new statutes will be submitted for consideration. 

 This scheme has been worked out by a committee in consequence 

 of resolutions passed at the Congress held last year at Cologne. 



According to the old statutes of 1822, still in force, the 

 Congress consists of members and associates, but only the for- 

 mer have the right of voting. Everyone who has written a book 

 on natural science or on medicine is regarded as a member. No 

 one, however, who has merely written an inaugural dissertation 

 can be considered as an author. Admission as associates is open 

 to all who have occupied themselves scientifically with natural 

 science and medicine. The ordinary ticket costs 1 2 marks ; and 

 the same ticket may be obtained for ladies at half the price. In 

 return for an annual subscription of 5 marks, paid in accordance 

 with the decisions of the Cologne Congress last year, the mem- 

 bers receive a special member's ticket. The tickets will often 

 have to be shown so that members and associates ought to have 

 them always ready. 



Resolutions can be passed only at a general sitting ; and every- 

 thing is decided by the votes of a majority of the members. Reso- 

 lutions with regard to scientific theses are not adopted either at 

 the general sittings or in the Sections. The Sections elect their 

 own Presidents, and may, in addition to the Secretary previously 

 appointed, nominate, if necessary, a second or a third Secretary. 



In connection with the meeting, there will be an exhibition of 

 scientific apparatus, instruments, and preparations. It will be 

 held in the town gymnastic hall ( TnrnhalU), Grabengasse, 22. 

 Arrangements are being made for this exhibition by a special 

 commutee, the president of which is Herr Stadtrath Leimbach, 59 

 Gaisbergstrasse, Heidelberg, to whom all communications re- 

 lating to the exhibition should be addressed. The ordinary 

 ticket secures admission to the exhibition, which will be open 

 daily, to members and associates only, from 8 to il o'clock a.m. 

 During these hours, explanations will, if desired, be given by 



exhibitors or their representatives. After 1 1 o'clock the exhibi- 

 tion will be open to the public, who will have to pay for admission. 

 A catalogue will be provided for members and associates. 



The Directors of the Museum and of the Harmonic Society 

 have placed their rooms at the disposal of the Congress ; and 

 through the kindness of the civic authorities, and of the Society 

 to which the Museum belongs, it has been arranged that a con- 

 cert shall be given in the town garden on September 18, and a 

 festival in the Castle grounds on September 20 ; that the Castle 

 shall be illuminated on the evening of September 23 ; and that a 

 ball shall be given in the Museum on September 21. Tickets for 

 the dinner in the great hall of the Museum, on September 19, 

 will be issued at the Reception Room on Tuesday and Wednes- 

 day, September 17 and 18. The Reception Room and Inquiry 

 Office will be on the ground floor of the Bayrischer Hof, 2 

 Rohrbacher Strasse, near the railway station. 

 I Applications for lodgings will be received by Herr Rath- 

 ! schreiber Webel (Rathhaus, Heidelberg), Secretary of the Lodg- 

 j ings Committee. A representative of this Committee will be 

 present in the Reception Room. 



A daily Bulletin will be issued during the sitting of the Con- 

 gress. Every morning it will be found in the Reception Room, 

 with a list of members and associates ; also with the orders of 

 the day in the Sections, &c. Reports of papers can only be 

 printed afterwards in the scientific part of the Bulletin. Papers 

 which are intended for publication must be written plainly, and 

 handed in not later than October 8. 



A post and telegraph office will be open in the ground floor of 

 the University from 8 a.m. to 8 p.m., and a room will be set 

 apart for the writing of letters. Dr. Quincke and Dr. Kiihne 

 have not been able to induce the railway companies to issue 

 tickets at a reduced price. 



On Sunday, September 22, the following excursions will be 

 made : — 



(i) Through the Valley of the Neckar to Neckarsteinach, 

 Hirschhorn, Eberbach, Ernstthal, 



(2) By the Bergstrasse to Weinheim, Bensheim, Auerbach, 

 Zwingenberg, Jugenheim. 



(3) In the Palatinate, to Speyer, Neustadt, Annweiler, 

 Diirkheim. 



(4) To Mannheim, for the examination of the collections 

 there, and for a visit to the opera. 



All members and associates (even those who may already 

 have their tickets) are requested to write their names on the list 

 in the Reception Room, and at the same time to give their cards, 

 with name, titles, and place of residence. 



The following is the general order of the day : — 



Tuesday, September 17 : 9 a.m., opening of the Exhibition ; 

 8 p.m., friendly meeting in the Museum. 



Wednesday, the i8th : 9 a.m., first general meeting in the 

 great hall of the Museum. (i) Opening of the Congress: 

 Speeches. (2) Lecture by Geh. Rath von Meyer (Gottingen- 

 Ileidelberg), on "Chemical Problems of the Present Day."' (3) 

 Lecture by Dr. G. H. Otto Volger (Frankfort), on the " Life and 

 Achievements of Dr. K. Schimper." 



Midday : Assembling and formation of the Sections. 



Afternoon : Sittings of the Sections. 



7 p.m. : Concert in the Town Garden. 



Thursday, the 19th : Sittings of the Sections; 5 p.m., dinner 

 in the great hall of the Museum. 



Friday, the 20th : 9 a.m., second general meeting in the great 

 hall of the Museum, (i) Lecture by Prof. Hertz (Bonn), on 

 "The Relations between Light and Electricity." (2) Con- 

 sideration of the scheme of new statutes, under the presidency 

 of Dr. Virchow, as Chairman of the Committee by which the 

 scheme was drawn up. (3) Election (a) of the new Committee, 

 (/>) of the next place of meeting, [c) of the business managers of 

 the next meeting. 



Afternoon : Sittings of the Sections. 



6.30 p.m. : Festival at the Castle. 



Saturday, the 2ist : Sittings of the Sections. 7.30 p.m., ball 

 in the Museum. 



Sunday, the 22nd : Excursions in the neighbourhood. 



Montlay, the 23rd : 9 a.m., third general meeting in the great 

 hall of tire Museum. (i) Lecture by Prof. Th. Puschmana 

 (Vienna), on "The Significance of History for Medicine and the 

 Natural Sciences." (2) Lecture by Prof. Brieger (Berlin), on 

 " Bacteria." 



Afternoon : Sittings of the Sections. 



7.30 p.m. : Illumination of the Castle. 



