McLeod—-The Walden Inversion—A Critical Review. 525 
4. Reactivity of alkyl haloids with silver nitrate. Burke & Don- 
nan: Trans. L. Ch. Soc. 1904 p. 555. 
5. Cone, the speed of the action of alcoholic potash on the halogen 
derivatives of the fatty hydrocarbons. Mejer Wildermann: 
Zeit. fiir phys. Ch. 8, 661-676. 
6. Action of silver nitrate and other reagents on alkyl bromides. 
Lengfeld: Am. Ch. J. 11, p. 40-66. 
7. Prep, of olefines by heating alkyl haloids with oxide of lead at 
220°-225°. G. Wagner: Ber. 11, 414. 
8. Action of alcoholic potash, potassium acetate and silver acetate 
resp. on n. propyl bromide and iodide. Chapman & Smith: 
J. L. Ch. Soc. [1869] Vol. 22, p. 193-198. 
9. Action of pot. ethylate, silver acetate or glacial acetic, pot. 
acetate, pot. cyanide etc. resp. or butyl haloids, Lieben & Rossi: 
Ann. 158, 164. 
10. Relation of opt. active to corresp. dl amylalcohols. Marckwald 
& Nolda: Ber. (June 1909) 1583. 
X. Work of P. Walden of ‘Walden Inversion'. 
Malic, Asparaginic, chlorsuccinic acids. 
Ber. 29, 135. Ber. 32, 1855. Ber. 30, 3147. 
Ber. 28, 1293. Ber. 32, 1833. 
XI. Work of Pur die and Williamson on *Walden Inversion .’ 
1. Conv. of dextrolactic into laevolactic by means of the action of 
silver oxide on a chlorpropionic acid. 
Trans. L. Ch. Soc. [1896] p. 838. 
XII. Work of Emil Fisher on ‘ Walden Inversion: 
Alanin, Brompropionic, Lactic acids. 
1. Ber. 40, 1051 ‘Zur Kenntnis der Waldensche Umkehrung.’ 
2. Ber. 40, 5000-5008. Action of trimethylanoine and d brom¬ 
propionic acid. 
3. Ber. 41.889'. A study of opt. active valin. 
4. Ber. 41. 2891 Proof of ‘double inversion’ in the case of 
opt. active valin. 
5. Ber. 41, 1286. A study of phenylamino acetic acid. 
6. Ber. [May 1909] 1219. No inversion with j8 Chlorbutyric. 
7. Ber. [Oct. 1909] A test of Guye & Crum Brown’s hy¬ 
pothesis. Propyl isopropyl cyan acetic acid. 
8. Ber. [Jan. 1910] Action of calcium oxide and of zinc ox¬ 
ide on halogen fatty acids in water sol. at 100°. 
9. Ber. [July 1910] 2020-2030. No inversion in the action of 
nitrous acid on d /3 amino /3 phenyl propionic to give 
laevorotatory 0 oxy j0 phenyl propionic acid. 
