December 29, 1922] 



SCIENCE 



745 



Lord Crawford last year, 'has already added to 

 the amenities of London. Early :this spring 

 small enclosures in Hyde Park and Kensington 

 Gardens were prepared by suitable fencing, a 

 small amount of pla'Htinig, and exclusion of 

 itidying gardenere. The toirds accepted the hos- 

 pitality; no fewer than twenty species, in- 

 cluding willow wrens, great and blue tits, red- 

 breasts and lesser whitethroats, spotted fly- 

 catchers, carrion eroAvs, tawny owls, pheasants 

 and moorhen nested there this year. Accord- 

 ing to a report just issued fcy the committee, it 

 is proposed to extend these successful experi- 

 ments. In Hyde Park the hank near the frame- 

 house and an enclosure beside the magazine are 

 to he allowed to grow wild, and some planting 

 of suitahle shrubs is to be camed out. The 

 area on the east side of the Long Water in 

 Kensington Gardens and a smaller enclosure 

 on the west side ai'e to be sanctuaries. The 

 Duck Island in St. James's Park, two or three 

 sites in Buckinghaim Palace Gardens, by con- 

 sent of His Majesty, the islands in the lake 

 in Regent's Park, the wilderness in Greenwich 

 Park, and the Isabella Plantation in Richmond 

 Park are all to be prepared and reserved. 

 These admirable sanctuaries, due to ifehe initia- 

 tion of Mr. Harold Russell, a well-known Lon- 

 don ornithologist, cost little, give pleasure to 

 many, and will not incommode a single human 

 being. They are not to incommode even the 

 London cats, for the committee, after consul- 

 tation with the Offiee of Works, decided that 

 there was no praetieal cat-proof fence. But 

 war is declai-ed against the grey squirrels, ab- 

 soilute to extermination in Richmond Park, and 

 intermittent in Hyde Park and Kensington 

 Gardens. Public sentiment will be on the side 

 of these pleasant rogues. The charge against 

 ithem, of being habitual robliere of nests, is not 

 proven, but, were it so, there are fences in the 

 London Zoo which retained them, and Avhich, 

 therefore, could exclude them from the sanc- 

 tuaries. Their charm persists through the year, 

 and is, indeed, even greater in the bleak months 

 when the migrant birds have left their sanc- 

 tuaries bare. But perhaps ithey wiU succeed 

 in defeating even Lord Ciia^vford's competent 

 committee. 



THE AMERICAN ELECTROCHEMICAL 

 SOCIETY 



The forty-third semi-annual meeting of the 

 American Electrochemical Society win be held 

 in New York City, at the Hotel Commodore, 

 on May 3, 4 and 5, 1923. The principal atti-ac- 

 tions of the technical program wiU be a whole 

 day session on the general topic : "The Pro- 

 duction and Application of the Rarer Metals." 

 The arrangements for this session are in charge 

 of Dr. F. M. Becket, of the Eleotrometallnr- 

 gieal Corporation, New Yoa-k City. There will 

 be paper's on vanadium, tungsten, cobalt, 

 molj'bdenum, zirconium, ceriimi, uranium, 

 tantalmn, calcium, magnesium and others. 



Among the speakers will (be : 



H. N. McCoy, president of the Carnotite Be- 

 duetioii Coinpany, of Chicago. 



H. "VV. Gillett, of the Burea/u of JKiies, Ithaca, 

 N. Y. 



B. D. Satlatwalla, of the Vanadium Corpora- 

 tion. 



F. E. Carter, of the Baker Plaifcinum Works, 

 Xewajk, N. J. (paper on platthtum). 



H S. Cooper (papea' on zirconiium metal). 



J. A. Holladay, of the Elatroimstallurgical Cor- 

 poration (paper on analyses). 



M. A. Hunter, of the Benaselaer Polytechnie 

 Institute, Troy, N. Y. (itwo papers; one on Ti). 



Mr. Clancy (paper on a;llo3's as eatalyyers) 



Mr. Cutter, of the Climax Molybdenum Com- 

 pany. 



Russel Lowe, Bario ileita.l Corporation (paper 

 on bario metal). 



Colta G. Fiink, secretary of the society (paper 

 on tungsten). 



C. E. IMinor, Aravaipo Leasing Company, Klon- 

 dyke, Graham County, Arizona. 



W. R. Whitney, director of research laborato- 

 ries, General Electrje Company, Schenectady, 

 N. Y. 



Another session will be devoted to a discus- 

 sion of "Electrode potenitials," headed by Dr. 

 Wm. G. Hoi-sch, of the Chile Exploration Com- 

 pany, New York. The papers will cover 

 studies on: 



(a) Reversible eleotromotive force. 



(6) Overvoltage. 



(c) Ion aetivitdes and dissooiations. 



(d) Electro-.titration. 



(e) p determinaitioais. 



