418 Neue Literatur. 40, 4. 



Morey , G. W. , Classification and nomenclature of optical glass ( Journ. 



Opt. Soc. of America vol. 4, 1920, S. 205— '212). 

 Morse, R. V., Grinding non-spherical lenses (Journ. Opt. Soc. of America 



a. Rev. of sc. instrum. vol. 7, Nr. 9, 1923, S. 705—706). 

 Nutting, P. G., The Standards committees of the optical society of America 



(Journ. Opt. Soc. of America vol. 4, 1920, S. 239—241). 

 Otto, G. , Neues aus den C. Zeiß -Werken in Jena (Verhandl. zool. bot. 



Ges. Wien [1923 der Sitzungsber.] Bd. 72, 1922, S. [119] — [120] i. 

 Rayton , W. B. , The practical application of parabolic surfaces in lens 



construction (Journ. Opt. Soc. of America a. Rev. of sc. instrum. 



vol. 7, 1923, Nr. 2, S. 197—202). 

 Roberts, J. M., Standardization and limitation of types und sizes of labo- 



ratory apparatus (Journ. Opt. Soc. of America a. Rev. of sc. instrum. 



vol. 7, 1923, Nr. 11, S. 973—981). 

 Schild, E., Das neue monobinokulare Stereoraikroskop der optischen Werke 



C. Reichert in Wien (München, med. Wochenschr. Jahrg. 69, 1922, 



S. 1051—1052). 

 Schliiik, Fr. J. , Life testing of mechanical Instruments (Journ. Opt. 



Soc. of America a. Rev. of sc. instrum. vol. 7, 1923, Nr. 11, S. 1031 



—1042). 

 Sheard, Ch., a. Tilleyer, E. D., The lensometer. An Instrument for the 



measurement of the elfective or vertex power of Ophthalmie lenses 



(Journ. Opt. Soc. of America a. Rev. of. sc. instrum. vol. 6, 1922, Nr. 10, 



S. 1030—1039). 

 Smith, T. , The classi-fication of optical Instruments (Journ. Opt. Soc. of 



America a. Rev. of sc. instrum. vol. 6, 1922, Nr. 5, S. 682—687). 

 Southall, J. P. C, Note on Professor Woodworth's formula for focal 



length (Journ. Opt. Soc. of America vol. 4, 1920, S. 245—248). 

 Southall, J. P. C, Some of Huyghen's contributions to dioptrics with 



notes (Journ. Opt. Soc. of America a. Rev. of sc. instrum. vol. 6, 1922, 



Nr. 5, S. 461—475). 

 Southall, J. P. C, The beginnings of optical science (Journ. Opt. Soc. of 



America a. Rev. of sc. instrum. vol. 6, 1922, Nr. 4, S. 293—311). 

 Thomson , E. , The mechanics of optical polishing (Journ. Opt. Soc. of 



America a. Rev. of sc. instrum. vol. 6, 1922, Nr. 8, S. 843—847). 

 Troland, L. Th., Helmholtz's contributions to physiological optics (Journ. 



Opt. Soc. of America a. Rev. of sc. instrum. vol. 6, 1922, Nr. 4, S. 327 



—335). 

 Twyman, F., The Hilger microscope interferometer (Journ. Opt. Soc. of 



America a. Rev. of sc. instrum. vol. 7, 1923, Nr. 9, S. 635—656). 

 Uhler, H. S., Correlations of elementary proofs of the fundamental pro- 



perties of oblique deviation by prisms (Journ. Opt. Soc. of America a. 



Rev. of sc. instrum. vol. 6, 1922, Nr. 10, S. 1072—1075). 

 \Veld, L. R. D., The crystelliptometer. An Instrument for the polariscope 



analysis of very slender beams of light (Journ. of Opt. Soc. of America 



a. Rev. of sc. instrum. vol. 6, 1922, Nr. 1, S. 67—91). 

 Woodworth, C. W., A focal-length equation (Journ. Opt. Soc. of America 



vol. 4, 1920, S. 243—244). 



