150 



ANNUAL REPORTS, SMITHSONIAN INSTITUTION 



Poggendorff, }. C, Use of the galvanom- 

 eter as a measuring instrument. 

 1859: 396-407 

 Poincare, Henri, Connection between the 

 ether and matter. 1912: 199-210 

 Future of mathematics. 1909: 123- 



140 

 Light and electricity, according to Max- 

 well and Hertz. 1894: 129-139 

 Poincare, Henri 



Henri Poincare: his scientific work; his 

 philosophy, by Charles Nordmann. 

 1912: 741-763 

 Pokorny, Julius, Origin of Druidism. 



1910: 5 8 3"597 

 Polar expeditions 



At the North Pole, by Lincoln Ells- 

 worth. 1927: 321-329 



Expedition to the South Pole, by Roald 

 Amundsen. 1912: 701-716 



First crossing of Antarctica, by Lincoln 

 Ellsworth. 1937: 307-321 



First year's work of the National 

 Antarctic Expedition, by Clements 

 R. Markham. 1903: 459-465 



Letters from the Andree party. 1897: 

 401-412 



North Polar exploration: field work of 

 the Peary Arctic Club, 1 898-1 902, 

 by R. E. Peary. 1903: 427-457 



Swedish Antarctic expedition, by Otto 

 Nordenskiold. 1903: 467-479 



To the north magnetic pole and 

 through the Northwest Passage, by 

 Roald Amundsen. 1906: 249-273 

 Polar Regions 



Elements of the culture of the circum- 

 polar zone, by W. G. Bogoras. 1930: 

 465-482 



Paleogeographical relations of Antarc- 

 tica, by Charles Hedley. 19 12: 



443-453 

 Some problems of polar geography, by 

 R. N. Rudmose Brown. 1928: 



349-375 

 Politics, world 



Maps, strategy, and world politics, by 

 Richard Edes Harrison and Robert 

 Strausz-Hupe. 1943: 253-258 



Pollen 



Pollen and spores and their use in 

 geology, by Estella B. Leopold and 

 Richard A. Scott. 1957: 303-323 

 Pollination 



Bees and flowers, by E. L. Bouvier. 

 1904: 469-484 

 Pollock, James, Account of the processes 

 employed in the assay of gold and 

 silver coins at the mint of the United 

 States. 1868: 422-428 

 Pollution, see Air pollution 

 Polyembryony 



Polyembryony and the determination 

 of sex, by E. Bugnion. 1906: 309- 

 320 

 Polynesia 

 Easter Island, by Alfred Metraux. 



*9W- 435-451 

 Easter Island, Polynesia, by Henri 



Lavachery. 1936: 391-396 

 The Polynesian bow, by E. Tregear. 



1892: 197-202 

 Pomfeckj, Josef Felix, Is the earth grow- 

 ing old? 1927: 255-270 

 Ponies 



Multiple origin of horses and ponies, 



by J. Cossar Ewart. 1904: 437-455 

 Popenoe, Dorothy Hughes, Ruins of 



Tenampua, Honduras. 1935: 559- 



572 

 Popham, W. L., Golden nematode in- 

 vades New York. 1948: 349-353 

 Population 



Anthropology and the melting pot, by 



T. D. Stewart. 1946: 315-343 

 European population of the United 



States, by William Z. Ripley. 1909: 



585-606 

 Inquiry into the population of China, 



by William Woodville Rockhill. 



1904: 659-676 

 Numbers and distribution of mankind, 



by C. B. Fawcett. 1948: 338-392 

 Population of ancient America, by H. 



J. Spinden. 1929: 451-471 



