226. BOTANICAL GAZETTE | OCTOBER 
of establishing this part of physiology upon a more secure and 
accurate basis. The analytical chemists and the physical chem- 
ists have done an enormous amount of investigation upon solu- 
tions, and they have established tables for various purposes. 
Their tables and results are convenient, clear, and ready for use ; 
and the only way to make proper use of them is to make the 
solutions according to the chemist’s standard. 
Sutton (18, p. 28, footnote) gives a piece of excellent 
advice in the following statement: ‘Anyhow it is to be hoped 
that those who communicate processes to the chemical journals, 
or abstracts of foreign articles for publication, will take care to 
distinguish between the conflicting systems.” If this advice is 
useful to the chemist, how much more useful should it be to 
those who are not chemists, but who in their work make use of 
tables of standard solutions made by the chemists. 
BoTANICAL MUSEUM OF HARVARD UNIVERSITY. 
BIBLIOGRAPHY CITED. 
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2. FRESENIUS: Volumetric Chem. Anal. 18 
3. GAkRY: The effects of ions upon the Ritewation of flagellates. Amer. 
Jour. Physiol. 3: 298. 1900. 
HEALD: On the toxic effect of dilute solutions of acids and salts upon 
plants. Bot Gaz, 22: 125. 18096. : 
KAHLENBERG and TRUE: On the toxic action of dissolved salts and their 
electrolytic dissociation. Bot. Gaz. 22:81. 1896. 
. KoHLRauscH and HoLporn: Das Leitvermdgen der Elektrolyte. 1898. 
7- LEBLANC: Electro-chemistry. 1896. 
8. LINGLE: The action of certain ions on ventricular muscle. Amer. Jour. 
Physiol. 4: 265. 1900. : 
9. LoEB: On ion-proteid compounds and their réle in the mechanics of life 
> 
on 
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a 
rr. MILLER and KILIKANI: Anal. Chem 
12. Moore: Further evidence of the rater ‘effects of a pure NaCl solu- 
tion. Amer. Jour. Physiol. 4: 386. 
13. OSTWALD: Lehrb. d. Allg. Chem. II. ee 2. “1893. 
: Solutions (trans. by Muir), 1891. 
: Outlines of Chemistry (trans. by Walker). 1895. 
