Hopfgartner] 



934 



[Hopkins 



Hopfgartner, K[arl], Ueber eiuige Abkommlinge der 

 s-Disulfobenzoesaure (1:3:5). Wien, Ak. Sber., 102, 

 1893 (Abth. 2b), 645-658; Mhefte. Chem., 1893, 685- 

 698. 



Beitrag zur Kenntniss der Alkaloide von Macleya cor- 



data, E. Br. Wien, Ak. Sber., 107, 1898 (Abth. 2b), 

 211-242; Mhefte. Chem., 1898, 179-210. 



Ueber Stromleitung in gemischten Liisungen von 



Elektrolyten. Ztschr. Physikal. Chein., 25, 1898, 115- 

 143. 



Hopfgartner, K [arl], & Senhofer, K. See Senhofer & 



Hopfgartner. 

 Hopkins, A. G. Filaria oculi, parasite in the eye of a 



horse. Ottawa Natlist., 11, 1897, 113-115. 

 Hopkins, Andrew D. Notes on a destructive forest tree 



scolytid. Science, 20, 1892, 64-65. 

 Some bred West Virginia Braconidas. U. S. Div. Ent. 



Insect Life, 4, 1892, 256-259. 

 Damage to forests by the destructive pine-bark beetle 



(Dendroctonus frontalis, Zimm.). U. S. Div. Ent. Insect 



Life, 5, 1893, 187-189. 

 Note and record keeping for the economic entomologist. 



[1893.] U. S. Div. Ent. Insect Life, 6, 1894, 103-108. 

 Destructive scolytids and their imported enemy. 



[1893.] U. S. Div. Eat. Insect Life, 6, 1894, 123-129. 

 Sexual characters in Scolytidae. (A preliminary con- 

 tribution.) Canad. Ent., 26, 1894, 274-280. 

 Notes on some discoveries and observations of the 



year in West Virginia. [With discussion.] [1894.] U.S. 



Div. Ent. Insect Life, 7, 1895, 145-151. 



Some observations on varieties of timothy (Phleum 



pratense, L.). [Amer.] Soc. Agr. Sci. Proc., 1895, 29-33. 



On the study of forest-tree insects. U. S. Div. Ent. 



Bull., 2, 1895, 75-78. 

 Some notes on insect enemies of trees. Canad. Ent., 



28, 1896, 243-250. 

 Some notes on observations in West Virginia on farm, 



garden, and fruit insects. U. S. Div. Ent. Bull., 6, 1896, 



71-73. 

 On the history and habits of the " wood-engraver " 



Ambrosia beetle, Xyleborus xylographus (Say), Xyleborus 



Saxeseni (Ratz.), with brief descriptions of different stages. 



Canad. Ent., 30, 1898, 21-29. 



Some notes on observations in West Virginia. [With 

 discussion.] U. S. Div. But. Bull., 17, 1898, 44-55. 



Preliminary report on the insect enemies of forests in 



the Northwest. An account of the results gained from a 



reconnaissance trip made in the spring and early summer 



of 1899. U. S. Div. Ent. Bull., 21, 1899, 27 pp. 

 American fossil Coleoptera referred to Scolytidse. 



[1900.] Psyche, 9, 1902, 64-67. 

 Hopkins, Arthur John. A dissolver. Amer. Chem. Jl., 



22 (1899), 407-410. 

 Hopkins, Arthur John, Morse, H [armon] N[orthrup], & 



Walker, Milo S[coti\. See Morse, Hopkins & Walker. 

 Hopkins, B[enjamin] J[ohri\. For biographical notice and 



works see Astr. Soc. Month. Not., 55, 1895, 193-194. 

 *[The remarkable sunsets.] [1883.] Nature, 29, 1884, 



179. 



Sky glows. Nature, 30, 1884, 268. 



[Date of the appearance of the Nova Andromedae. ] 



Observatory, London, 8, 1885, 331. 

 Hints to observers of Saturn. Sidereal Messenger, 4, 



1885, 49-51. 

 Erratic meteors. [1885-86.] Astr. Soc. Month. Not., 



46, 1886, 27-28 ; 47, 1887, 73-74. 



Note on a remarkable suu-spot. Astr. Soc. Month. 

 Not., 46, 1886, 393-394. 



Erratic barometric depression of May 23-29, and hail- 

 storm of May 24. Nature, 44, 1891, 224-225. 



Hopkins, C. L. Notes relative to the sense of smell in 

 the turkey buzzard (Cathartes aura). Auk, 5, 1888, 248- 

 251. 



Mountain swarming of Vanessa californica. [1890.] 



U. S. Div. Ent. Insect Life, 2, 1889-90, 355-356. 



Hopkins, Cyril George. Hydrazoic acid : a new form of 

 apparatus for its preparation ; its physiological action. 

 Science, 22, 1893, 1-2. 



A new safetj' distillation tube for rapid work in nitro- 

 gen determinations. Amer. Chem. Soc. Jl., 18, 1896, 

 227-228. 



The oil of corn. Amer. Chem. Soc. JL, 20, 1898, 



948-961. 



Some errors in the determination of nitrogen. Amer. 



Chem. Soc. Jl., 20, 1898, 961-965. 

 A condenser for extraction work. Amer. Chem. Soc. 



Jl., 20, 1898, 965-966. 



A plea for a scientific basis for the division of soil 



particles in mechanical analysis. [1898.] U. S. Div. 

 Chein. Bull., No. 56, 1899, 64-66. 



A rapid method of mechanical soil analysis, including 



the use of centrifugal force. [1898.] U. S. Div. Chem. 

 Bull., No. 56, 1899, 67-68. 



The incandescent electric lamp as a source of heat in 

 ether extraction. Amer. Chem. Soc. JL, 21, 1899, 645- 

 647. 



Improvement in the chemical composition of the corn 

 kernel. Amer. Chem. Soc. JL, 21, 1899, 1039-1057. 



Improvement in the chemical composition of the 



maize kernel. Chem. Soc. JL, 76, 1899 (Abs., Pt. 2), 687. 



Hopkins, Cyril George, & Dennis, L[ouis] M\unroe~\. See 



Dennis & Hopkins. 

 Hopkins, Cyril George, & Orndorff, W[illiam] R[idgely]. 



See Orndorff & Hopkins. 



Hopkins, Cyril George, & Powers, W. A. On the deter- 

 mination of the acidity of milk and cream. [1895.] U. S. 



Div. Chem. Bull., No. 47, 1896, 125-130. 

 Hopkins, Erastus. Sod oil, wool grease, and degras. 



Amer. Chem. Soc. JL, 22, 1900, 351-353. 

 Hopkins, Erastus, Coburn, D. L., & Spiller, Ediv. 



Analytical research on sod oil. Amer. Chem. Soc. JL, 



21, 1899, 291-300. 

 Hopkins, Frederick] Gowland. Note on a yellow pigment 



in butterflies. Chem. Soc. Proc., 5, 1889, 117-118. 



Pigment in yellow butterflies. [1891.] Nature, 45, 



1892, 197-198. 



On the estimation of uric acid in urine : anew process 



by means of saturation with ammonium chloride. [1892.] 



Boy. Soc. Proc., 52, 1893, 93-99. 

 On the estimation of uric acid in urine. Jl. Path. 



Bact., 1, 1893, 451-459. 

 The pigments of the Pieridae : a contribution to the 



study of excretory substances which function in orna- 

 ment. [1894-95.] Phil. Trans. (B), 186, 1896, 661- 



682. 

 Untersuchung iiber die Einwirkung der Halogene auf 



Eiweiss. (Vorlaufige Mittheilung.) Berlin, Chem. Ges. 



Ber., 30, 1897, 1860-1862. 

 A modification of HOFMEISTEB'S method of crystallizing 



egg-albumin. [1898.] Jl. PhysioL, 23, 1898-99, [47]. 

 On the separation of a pure albumen from egg-white. 



Cambridge Phil. Soc. Proc., 10, 1900, 300-301; JL 



PhysioL, 25, 1899-1900, 306-330. 

 Hopkins, Frederick] Gowland, & Brook, Francis W[illiam~\. 



On halogen derivatives from proteids. [1897.] JL 



PhysioL, 22, 1897-98, 184-197. 

 Hopkins, F[rederick] Gowland, 6 



E\dward\. On urobilin. Part n. 



position of urobilin. [1898.] Jl. 



451-464. 



See also G-arrod & Hopkins. 

 Hopkins, F[rederick] Gowland, & Hope, W[alter~\ Bayard 



[non Beresford]. Are nucleo-proteids the chief dietetic 



precursors of uric acid ? A criticism of the conclusions 



drawn from thyinus feeding. [1898.] Jl. PhysioL, 23, 



1898-99, [46]-[47]. 



'c Garrod, Archibald 

 The per-centage com- 

 Physiol., 22, 1897-98, 



