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2. Ueber Production von organischer Pflan- 



zensubstanz. Dresden, Landw. Versuchs-Stat. 

 XL, 1869, pp. 207-218. 



3. Ueber den Bedarf des Hefepilzes Saccha- 



romyces cerevisiae an Aschenbestandtheilen. 

 Dresden, Landw. Versuchs-Stat. XL, 1869, pp. 

 443-462; Chem. Central-Blatt, XIV., 1869, pp. 

 965-967. 



4. Ueber die Wirkungsweise des Pepsins 



bei der Verdauung. Zeitschr. Biol. V., 1869, pp. 

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5. Untersuchungen iiber die alkoholische 



Gahrung und Ernahrung des Bierhefepilzes. 

 Annal. Phys. Chem. CXLIL, 1871, pp. 293-305 ; 

 Dingier, Polytechn. Journ. CCL, 1871., pp. 69-76. 



6. Ueber Desinfectionsmittel. Heidelberg, 



Verhandl. Nat. Med. VI., 1872, pp. 69-82. 

 Mayer, Alfred M. On the thermo-dynamics of 



water-falls. Amer. Assoc. Proc. XVIIL, 1869, 



pp. 64-69. 

 2. Solar Eclipse of 7th August 1869. 



Franklin Instit. Journal, LVIIL, 1869, pp. 249- 



275. 



3. Observation photographique de 1'eclipse 



totale de Soleil du 7 Aout 1869, faite a Burling- 

 ton, Iowa (Etats-Unis d'Amerique). Paris, 

 Acad. Sci. Compt. Eend. LXIX., 1869, pp. 

 1017-1019. 



4. Abstract of a research on a simple 



method of measuring electrical conductivities by 

 means of two equal and opposed magneto-electric 

 currents or waves. Amer. Assoc. Proc. XIX., 

 1870, pp. 76-81 ; Amer. Journ. Sci. L., 1870, 

 pp. 307-318. 



5. Researches in electro-magnetism. Amer. 



Journ. Sci. L., 1870, pp. 195-212. 



6. Observations on the Planet Jupiter. 



Franklin Instit. Journal, LIX., 1870, pp. 136-139. 



7. Abstract of a research in electro-mag- 

 netism. Franklin Instit. Journ. LX., 1870, pp. 

 403-410. 



8. Observations on the variation of the 



magnetic declination in connexion with the 

 aurora of 14th October 1870. Franklin Instit. 

 Journ. LX., 1870, pp. 424-429 ; Amer. Journ. 

 Sci. L, 1871, pp. 77-82. 



9. On the physical condition of a closed 



circuit contiguous to a permanent Voltaic cur- 

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 Amer. Journ. Sci. L, 1871, pp. 17-24. 



1O. On a method of fixing, photographing, 

 and exhibiting the magnetic spectra. Amer. 

 Journ. Sci. L, 1871, pp. 263-266; Phil. Mag. 

 XLL, 1871, pp. 476-480; Annales de Chimie, 

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Mayer, Alfred M. 11. An abstract of some of the 

 results of measurements and examinations of the 

 photographs of the total Solar Eclipse of 7th 

 August 1869. Amer. Phil. Soc. Proc. XL, 1871, 

 pp. 204-208. 



12. Acoustical experiments, showing that 



the translation of a vibrating body causes it to 

 give a wave-length differing from that produced 

 by the same vibrating body when stationary. 

 Amer. Journ. Sci. III., 1872, pp. 267-270; 

 IV., 1872, pp. 264-265 ; Annal. Phys. Chem. 

 CXLVL, 1872, pp. 110-115 ; Carl, Repertorium, 

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 Acad. Sci. Compt. Rend. LXXIV., 1872, pp. 

 747-750; Phil. Mag. XLIIL, 1872, pp. 278- 

 281 ; XLIV., 1872, p. 320. 



13. On a new form of lantern-galvano- 

 meter. Amer. Journ. Sci. III., 1872, pp. 414- 

 418; Carl. Repertorium, VIIL, 1872, pp. 133- 

 137 ; Phil. Mag. XLIV., 1872, pp. 25-29. 



14. On a precise method of tracing the 



progress and of determining the boundary of a 

 wave of conducted heat. Amer. Journ. Sci. IV., 

 1872, pp. 37-40; Phil. Mag. XLIV., 1872, pp. 

 257-261. 



15. Remarks on Dr. R. RADAU'S paper in 



Dr. CARL'S " Repertorium^ (vol. viii., No. 1), 

 entitled, " Remarks on the influence of a motion 

 of translation of a sounding body on the pitch 

 of the sound." Amer. Journ. Sci. IV., 1872, 

 pp. 198-202; Carl, Repertorium, VIIL, 1872, 

 pp. 191-194. 



16. On a method of detecting the phases 



of vibration in the air surrounding a sounding 

 body; and thereby measuring directly in the 

 vibrating air the length of its waves and ex- 

 ploring the form of its wave surface. Amer. 

 Journ. Sci. IV., 1872, pp. 387-392 ; Phil. Mag. 

 XLIV., 1872, pp. 321-327 ; Annal. Phys. 

 Chem. CXLVIIL, 1873, pp. 278-286. 



17. On a simple and precise method of 



measuring the wave-lengths and velocities of 

 sound in gases ; and on an application of the 

 method in the invention of aia acoustic pyro- 

 meter. Amer. Journ. Sci. IV., 1 872, p. 425-430. 

 18. On the experimental determination of 

 the relative intensities of sounds ; and on the 

 measurement of the powers of various substances 

 to reflect and to transmit sonorous vibrations. 

 [1872.] Amer. Journ. Sci. V., 1873, pp. 44- 

 46, 123-126 ; Phil. Mag. XLV., 1873, pp. 90-97. 

 19. On the effects of magnetization in 



changing the dimensions of iron, steel, and bis- 

 muth bars ; and in increasing the interior capa- 

 city of hollow iron cylinders. Amer. Journ. 

 Sci. V., 1873, pp. 170-179; VI., 1873, pp. 80- 

 103; Chemical News, XXVIL, 1873, pp. 251- 

 253, 272-273; Phil. Mag. XLV., 1873, pp. 

 350-359 ; XLVL, 1873, pp. 177-201. 



