ao 



headed wagtail, golden oriole, Lapland bunting, 

 nutcrackei-s, Aipine swift, marsh harrier, kite, etc. 

 In a subsequent discussion, the question of the 

 last eagles seen in Kent was raised by the Presi- 

 dent of the Society, and he recalled the fact that 

 one was caught and destroyed at Chilhaiii Park 



about thirty years ago. That eagle was, he said,. 

 sho\m at a meeting of that Society. 



Mr. Briggs said there was one, he believed, shot 

 at Kamsgate at a later date. 



The proceedings concluded with a cordial vote 

 of thanks to the lecturer. 



'•LIQUID AIR.'— By Mr. W. T. LEEMING, M.Sc. 



The eleventh meeting took place on March 24 

 in the Chemical Lecture Theatre of the Simon 

 Langton Schools, which was placed at the 

 services of the Society by the kindness 

 of the Governors and the Headmaster. Mr. 

 "W. Leeming, M.Sc, was the lecturer, and his 

 subject was that of the liquifaction of gases. Mr. 

 Sidney Harvey, F.I.C., presided, and the atten- 

 dance, in view of the extremely unpropitious 

 weather, was most encouraging. Before com- 

 mencing his lecture, Mr. Leeming, at the instance 

 of Mr. Harvey, annoiinced that it had been 

 decided to hold a soiree at the Simon Langton 

 School, on somewhat the same lines as that held 

 at the jubilee celebration last year. It being 

 felt, however, that the original date fixed (April 

 7) was unsuitable it would be held after the 

 holidays. Mr. Leeming, who was most ably 

 assisted by Mr. Jeffs and several of the senior 

 students of the school, proceeded to give an inter- 

 esting exposition of the theory of matter in its 

 separate states, gaseous, liquid and solid, 

 illustrating his points by experiments showing the 

 effect of pressure and heat in reducing gases to a 

 liquid state. Every gas possessed its " critical 

 temperature," i.e., the temperature at wliicli 

 it could be liquified ; such gases as oxygen, 

 hydrogen, and nitrogen requiring an extremely 

 low temnerature before this change woxUd 



take place. In fact for air a temperatiu'e equiva- 

 lent to 2oCi degrees of frost was needed. The 

 process by which liquid air is obtained was ex- 

 plained and a number of experiments with a 

 vessel containg liquid air were carried out. Tubes 

 containing mercury, ammonia, etc., were plunged 

 into the vessel, and in a few moments their con- 

 tents were frozen. A piece of ordinary rubber 

 tubing was also immersed and on removal the 

 intense cold had rendered it so brittle that a 

 portion was smashed with a hammer, like glass. A 

 kettle containing some of the liquid was placed on 

 a slab of ice and it immediately commenced to boil, 

 the lecturer explaining that the contents of the 

 kettle were so much colder than the ice. 



At the close Mr. Harvey proposed a veiy hearty 

 vote of thanks to Mr. Leeming and his colleagues, 

 and said he wished to congiatulate him on his 

 successful experiments. They had not only spent 

 a great deal of time and trouble and much extra 

 work in preparing the lecture, but he knew those 

 articles coiUd not be moved about without con- 

 siderable risk and danger. Mr. Harvey also 

 thanked the Governor; for the use of the room. 



Mr. Leeming, in acknowledging the vote, said 

 Mr. Jeffs and himself promised, jointly, to give two 

 lectures, and he took that opportunity of thanking 

 Mr. Jeffs and also those who had assisted him. 



'SOME MEMORIES OF MONKEYS.'— By CAPTAIN McDAKIN. 



A meeting of the Society was held in the 

 Beaney Institute on April 13, when Captain J. G. 

 McDakin delivered a lecture, his subject being 

 " Some memories of monkeys." The speaker in- 

 troduced a number of amusing anecdotes of 



monkeys, with observations on their hal'its mad& 

 by himself during an expedition into the great 

 Terai jungle, on the borders of Nepaul. The 

 meeting concluded with a vote of thanks to the 

 lecturer for his interesting address. 



"BLACKMORES WORKS. —By Mr. P. MAYLAM. 



The last meeting of the session lllOS — 9 of the 

 Society was held in the Reference Library 

 of the Beaney Institute on Wednesday evening, 

 April 28, when Mr. S. Hai-vey presided, and a good 

 number of members and friends were present. Mr. 

 P. Maylam presented a paper on " Blackniore's 

 Works," and, despite its unpromising title, he 

 succeeded in keeping the interested attention of 

 tho.^e present to the end. 



Prior to the commencement of the lecture, the 

 Hon. Secretary, Mr. A. Lander, said they had had 

 that evening a preliminaiy committee meeting 

 to consider the arrangements for the closing 



soiree, which was fixed for Wednesday, May 12. 

 It was felt that they could not afford to give such 

 a swell affair as they did last year, and it was 

 agreed that a charge of Is. be made to members ; 

 non-members to p.ay Is. 6d. The soiree "-ould be 

 held in the Simon Langton Schools, and demon- 

 strations of different kinds would be given, and it 

 was hoped that the members would do their best 

 to induce theii' friends to purchase tickets. Mr. 

 Lander added that he would be glad if any mem- 

 bers who had any objects of interest would bi-ing 

 them, and so trj* to make the evening as instnictive 

 and helpful as that of last year (applause). 



