SCIENCE. 



[N. S. Vol. XI. No. : 



sented the British Museum with 250 sets of 

 North American birds' eggs. 



Mr. p. M. Mussbr has given $30,000 for a 

 public library at Muscatine, la. 



The Norwegian steamer Antarctic, with the 

 Danish East Greenland expedition commanded 

 by Lieut. Amdrup, sailed from Copenhagen on 

 June 14th, to explore the coast between Cape 

 Brewster and Agga Island. 



The Engineering and Mining Journal of June 

 9th publishes the full tables of mineral and 

 metal production of the United States in 1899, 

 as prepared for the Mineral Industry, Volume 

 VIII. This production, valued at the mines or 

 furnaces, amounted to $1,211,361,861, the larg- 

 est amount on record for the United States or 

 any other country. Deducting certain neces- 

 sary duplications, the net value of the min- 

 eral production in 1899 was $1,118,780,830, 

 against $799,518,033 in 1898, showing an in- 

 crease last year of $319,262,797, or 39.9 per 

 cent. This great amount came partly from the 

 increase in quantities and partly from general 

 advances in values. The United States last 

 year was the greatest producer of coal, salt, 

 iron, copper, silver and lead in the world ; also 

 of many of the less important metals and 

 minerals. The extent of our production is 

 shown by the figures, which include 252,115,- 

 387 short tons of coal; 13,400,735 long tons of 

 pig iron; 581,319,091 pounds of copper; 

 217,085 tons of lead; 129,675 tons of zinc; 

 57,126,834 ounces of silver, and $70,096,021 in 

 gold. 



Movements started simultaneously in Lon- 

 don by the Royal Geographical Society and in 

 the British Central Africa Republic under the 

 leadership of Sir Henry Stanley for the erection 

 of a memorial near the spot where Livingstone 

 died on Lake Bangweula, resulted in the for- 

 mation of a joint committee for purposes of co- 

 operation. The work of the committee as we 

 learn from the London Times has now been ac- 

 complished. The materials with which to con- 

 struct the memorial having been shipped to the 

 mouth of the Zambesi. The monument consists 

 of a handsome obelisk 20 feet in height, sur- 

 mounted by a cross. It is constructed of large 

 blocks of the best concrete, which will be quite 



as enduring as the hardest stone. No stone is 

 available in this part of Africa. The concrete 

 was sent out in air-tight metal cylinders, of 

 which there are 450, each weighing about 50 

 pounds. These are accompanied by 30 moulds 

 of oak, lined with metal, 18 inches square and 

 about 10 inches deep. Over 300 of these blocks 

 will be used in the construction of the memo- 

 rial. Two tablets of blackened bronze will be 

 firmly embedded in blocks as they are being 

 moulded, and will be placed on opposite sides 

 of the obelisk. These will contain the follow- 

 ing inscription : 



Erected by his friends to the memory of Dr. David 

 Livingstone, missionary and explorer. He died here, 

 May 4, 1873. 



Two other tablets will be placed on the other 

 faces of the memorial, with the following in- 

 scription : 



This monument occupies the spot where formerly 

 stood the tree at the foot of which Livingstone's heart 

 was buried by his faithful native followers. On the 

 trunk was carved the following inscription : — David 

 Livingstone. Died May 4th, 1873. Chuma, Souza, 

 Mniasere, Uohopere. 



The extensive repairs on the Peary Arctic 

 Steamer Windivard which have been in prog- 

 ress for several months are now completed and 

 the steamer will sail from Sydney about July 

 1st in command of Captain Samuel W. Bartlett. 

 The New York Evening Post states that the 

 JFiindiyard will proceed directly, with a call at 

 Disko, to Etah, North Greenland, Captain 

 Peary's winter quarters, where instructions 

 from him will doubtless be found, or if not, will 

 be awaited. It will take with her the maxi- 

 mum quantity of coal, additional lumber, oil, 

 sugar, arms, ammunitions, provisions, scientific 

 instruments and everything which is necessary 

 for Mr. Peary's work, including two new 

 whale-boats, built at New Bedford, for the 

 Peary service, thoroughly equipped in every 

 detail. Upon the arrival of the Windivard.at 

 Etah, Mr. Peary will assume command, and 

 further movements will be subjected to the 

 conditions of his work and to his instructions. 

 No passengers will be taken on the Windward, 

 the Danish Government having qualified their 

 permission to land at the Greenland ports, with 

 conditions that tourists should not be carried. 



