Hopfgartner] 



934 



[Hopkins 



Hopfgartner, K[arl]. Ueber eiuige Abkommlinge der 

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

 1893 {Abth. 26), 645-658; Mhefte. Chem., 1893, 685- 

 698. 



Beitrag zur Kenntniss der Alkaloide von Maeleya cor- 



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

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



Ueber Stromleitung in gemiscbten Losungen von 



Elektrolyten. Ztschr. Physikal. Chem., 2.5, 1898, 115- 

 143. 



Hopfgartner, K[iiii], & Senhofer, K. See Senhofer tt 



Hopfgartner. 

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



lior,se. Ottawa Natlist., 11, 1897, 113-115. 

 Hopkins, Andrew D. Note.s on a destructive forest tree 



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

 Some bred West Virginia Braconid^e. U. S. Div. Ent. 



Insect Life, 4, 1892, 256-2-59. 

 Damage to forests by tlie destructive pine-bark beetle 



(Dendroctouus frontalis, Zimm.). V. S. Div. Ent. Insect 



Life, 5, 1893, 187-189. 

 Note and record keeping for tlie economic entomologist. 



[1893.] U. S. Div. Ent. Insect Life, 0, 1894, 103-108. 



Destructive scolytids and their imported enemy. 



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



Sexual characters in Scolytid.'e. (A preliminary con- 

 tribution.) Canad. Ent., 26, 1894, 271-280. 



Notes on some discoveries and observations of the 



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

 Div. Ent. Insect Life, 7, 1896, 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 aud habits of the " wood-engraver " 



Ambrosia beetle, Xyleborus xylographus {Say), Xyleborus 



Saxeseni (A'ti?;.), with brief descriptions of different stages. 



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

 Some notes on observations in West Virginia. [With 



discussion.] U. S. Div. Eut. 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. .11., 



22 (1899), 407-410. 

 Hopkins, Artltur John, USorse, H[ormon'] N[orthruj)], & 



Walker, Milo .S'[co((]. See morse, Hopkins & Walker. 

 Hopkins, B[enjiimin] J[ohn]. 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 Andromeda.] 



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 sun-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, ('. 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, 35.3-356. 



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

 apjiaratus for its preparation ; its physiological action. 

 Science, 22, 1893, 1-2. 



A new safety 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. Amei'. Chem. Soc. 



Jl, 20, 1898, 965-966. 



A plea for a scientific basis for the division of soil 



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

 Chem. 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, 67-08. 

 The incandescent electric lamp as a source of heat in 



ether extraction. Amer. Chem. Soe. 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 {Alis., Pt. 2), 687. 



Hopkins, Ciiril Georpe, & Bennis, L[o!(is] M[unroe]. See 



Dennis & Hopkins. 

 Hopkins, Cyril Georye, & Omdorff, W[illiam] R[idyely]. 



See Omdorff & Hopkins. 

 Hopkins, Cyril Georye, & Powers, II'. A. On the deter- 

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



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

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



Amer. Chem. Soe. Jl, 22, 1900, 351-353. 

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



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



21, 1899, 291-300. 

 Hopkins, F[redcrich] Goirland. 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.] 

 lioy. 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 Pieridfe : 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. (Vorliiufige Mittheilung.) ]3erlin, Chem. Ges. 

 Ber., 30, 1897, 1860-1862. 



A modification of Hofmeistek'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, F[rederick] Goioland, & Brook, Francis W[illiam~\. 

 On halogen derivatives from proteids. [1897.] Jl. 

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



Hopkins, F[rederich] Gowland, & Getrrod, Archibald 

 E[dward]. On urobilin. Part ii. The per-centage com- 

 position of urobilin. [1898.] Jl. Physiol, 22, 1897-98, 

 451-464. 



See also Garrod & Hopkins. 



Hopkins, i''[r.'<Zfr/i-/i J Gowland, & Hope, W[alter] Bayard 

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

 precursors of uric acid? A criticism of the conclusions 

 drawn from thymus feeding. [1898.] Jl. I'hysiol, 23, 

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



