a memorable occasion, but the one that evening 

 was a still more memorable one. They now looked 

 forward to the time when they would celc> rate 

 their diamond jubilee, when he hoped Mr. Harvey 

 would give them an address, in which he would 

 tell them of some of the discoveries to which he 

 had said that they were now looking forward. He 

 had put into their minds the feeling which they 

 ought to have towards those gre;it and wide 

 questions, and had helped to lift them outside of 

 much that was somewhat narrow in those grooves 

 in which they all hud to work so hard. The Rev. 

 Galpin asked those who were present and were not 

 members of the Society to join it, and concluded 

 by proposing a very hearty vote of thanks to the 

 President for his services on that occasion, and 

 for those which he had rend'-*red to the Society 

 for so many years past (applause). 



Captain McDakin, an old member and Vice- 

 President of the Society, seconded the vote, which 

 was carried with acclamation. 



The President, in acknowledging the compli- 

 ment, expressed his gi-atitude. He observed 

 that he had received his reward for anything 

 which he had done in the patient attention and 

 kindly feeling which had been shown towards him. 



EXHIBITION OF SCIENTIFIC NOVELTIES. 



An exhibition of biological, chemical, and physi- 

 cal exhibits and demonstrations followed in the 

 Art Room and Laboratories, the company being 

 divided up into small parties by an ingenious 

 arrangement of tickets in such a manner that each 

 group was enabled to make a round of the various 

 departments and see what there was to be wit- 

 nessed without crowding. The exhibits included 

 some of the most recently discovered marvels of 

 science, and the prograiame as a whole was cer- 

 tainly well worthy of the occasion. In the " Fara- 

 day" Lecture Room Mr. Lander explained and 

 showed specimens of the new autochrome method 

 of colour photography. Hitherto it has been usual 

 to photograph in colours by means of what is 

 known as the thi-ee-colour process, three separate 

 exposiu-es being necessary on different plates, the 

 exposures have had to be timed in a certain exact 

 ratio, each has had to be developed to an equal 

 density, throe separate prints made, and these 

 carefxilly superimposed one upon the other. The 

 new process is a remarkable simplification of this 

 method, inasmuch as colour photographs can now 

 be obtained with one exposure on a single plate 

 in any ordinary Kodak or other camera. The 

 plate is then developed in the ordinary way. then 

 phmged into a solution of permanganate, and thus 

 within ten minutes of the picture being taken, a 

 finished slide is obtained in all the beautiful 

 colours of nature. Mr. Lander mentioned that in 

 a lecture upon the three - colour process which 

 he gave before the members of the Society ten 

 years ago he showed some photographs on a 

 single plat* which had been taken by means of 

 the Joly process, in which the picture was taken 

 through a ruled coloured screen. That process 

 was the simpler and the better of the two 

 methods then available, but unfortunately the 

 coarse lined ruling of the screen spoilt the effect of 

 the picture. Since that time many experimenters 

 have been at work on those lines, and quite 



recently two Americans — Mr. Powrie and Miss 



Florence Warner, of Chicago — have perfected a 

 similar process in which the lines are so fine as to 

 be almost invisible to the naked eye. We are 

 promised that plates by this process will be on 

 the market shortly, and in some respects they 

 offer advantages to the method which he had to 

 describe that evening in that they can bo repro- 

 duced and paper prints made from them. The 

 brothers Lumiere, of Lyons, have for a number of 

 years past been perfecting the method which 

 during the last few weeks has been placed upon 

 the market. They took ordinary maize starch — 

 not potato starch, as has been generally stated — 

 and stained equal quantities of it red, green,, 

 and violet, the whole being afterwards mixed 

 intimately together. A glass plate is then covered 

 with adhesive substance, and the coloured starch 

 granules sifted on to it in an even layer. This is 

 then varnished, and a coating of silver emulsion 

 covering the other layer. The plates are exposed in 

 the camera with the glass side towards the lens, so- 

 that the picture is taken through the layer of colour- 

 ed granules. Mr. Lander exhibited on the screen 

 a number of photographs taken at the Medical 

 Hall studio by this method of flowers, birds, 

 butterflies, and persons, the colours being remark- 

 ably true and effective. He stated that the plates 

 had only been on the English market for two- 

 weeks, and during the first week there was such 

 a rush for them that over ten thousand boxes 

 were sold in London alone, and the larger size 

 are even now so difficult to obtain that many 

 people are paying five shillings and even ten 

 shillings for a single plate. Mr. Lander explained 

 that his tu-m (Messrs. Lander and Smith) were 

 fortunate in obtaining some months ago a few of 

 the French plates direct from Paris, and were 

 thus enabled to obtain results before the English 

 supply was ready, and, therefore, in time to show 

 pictures at the exhibition of the Society of Colour 

 Photographers now being held in London. 



While some of the company wtn-e being thus- 

 interested in the subject of Colour Photography, 

 another party was assembled in the adjoining 

 " Kelvin " Laboratory, where Mr. Leeming and 

 Mr. Collard brought under their notice the- 

 marvels of the Wireless Telegraph, X Rays, and 

 Tesla High Frequency. In view of the recent 

 opening of the Marconi Atlantic service by which 

 messages are dispatched withoxit wires between 

 England and America, especial interest very 

 naturally centred in this instalLation, which was 

 entirely the work of Mr. Collard. As in ordinary 

 telegraphy, the Morse code of dots and dashes is 

 used, and in the course of the evening a number 

 of messages were received. They were recorded 

 on a tape receiver and afterwards read to the 

 company. One from Mr. Lander's installation at 

 the Medical Hall ran thus ; 



" Success to the East Kent Scientific Society 



and congratulations on celebrating its 



Jubilee." 

 It was received with a great amount of enthusi- 

 asm. All three of the principal methods of wire- 

 less telegraphy — the Marconi, De Forest, and 

 Lodge Muirhead systems — were illustrated and 

 explained. The remarkable powers of the X Rays 



