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Bettany. Eminent doctors. 1885. v.2, p.302-304 926.1 B46 v.a 



Guyot, Arnold Henry, 1807-84, Swiss-American geologist. 



American Academy of Arts and Sciences. Proceedings. 1884. v.19, 

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Nature. 1896. v.55, p. 158-159 qr 505 N15 v.55 



Gzowski, Sir Casimir Stanislaus, 1813-98, Russian engineer. 



American Society of Civil Engineers. Transactions. 1899. v.42, 

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Haast, Sir Julius von, 1824-87, German geologist. 



Royal Society of London. Proceedings. 1889. v.46, 

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Hackworth, Timothy, 1 786-1 850, English mechanical engineer. 



Layson. Great engineers, p. 285-295 926 L44 



Hadsall, Joseph Candy, 1873-1911, American engineer. 



American Society of Civil Engineers. Transactions. 1912. v.75, 



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Haeckel, Ernst, b. 1834, German biologist. 



Baker. Seen in Germany. 1901. p.133-157 914.3617 



Bolsche. Haeckel; his life and work. 1906 92 Hi32b 



Popular science monthly. 1910. ^.76, p.136-142 r 505 P81 v.76 



Hagen, Hermann August, 1817-93, German entomologist. 



American Academy of Arts and Sciences. Proceedings. 1894. v.29, 



p.419-423 qr 506 A5122P v.29 



Hague, James Duncan, 1836-1908, American mining engineer. 



American Institute of Mining Engineers. Transactions. 1908. v.39, 

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Hahnemann, Christian Samuel Friedrich, 1 755-1843, German physician, 

 founder of homeopathy. 

 Bradford. Life and letters of Dr Samuel Hahnemann. 1895.. 92 Hi47b 



Haidinger, Wilhelm Karl, ritter von, 1795-1871, German mineralogist. 



Nature. 1871. v.3, p.450 qr 505 N15 v.3 



Royal Society of London. Proceedings. 1872. v.20, 



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Haldeman, Samuel Stehman, 1812-80, American naturalist. 



National Academy of Sciences. Biographical memoirs. 1877-1909. 

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Popular science monthly. 1882. v.21, p. 395-401 r 505 P81 v.ai 



71 



