PER] 



591 



[PER 



Ferkin, William Henry. 27. Note on some new 

 derivatives of coumarin. Chemical News, XXII., 

 1870, p. 85 ; Chem. Soc. Journ. IX., 1871, pp. 

 37-55. 



28. On artificial alizarin. Chem. Soc. 

 Journ. VIII., 1870, pp. 133-143; Annal. Chem. 

 Pharm. CLVIIL, 1871, pp. 315-319; Annales 

 de Chimie, XXVI., 1872, pp. 136-137. 



29. On some new bromine derivatives of 



coumarin. Chem. Soc. Journ. VIII., 1870, pp. 

 368-371 ; Annal. Chem. Pharm. CLVIL, 1871, 

 pp. 115-119. 



30. On anthraflavic acid. Chem. Soc. 



Journ. IX., 1871, pp. 1109-1112; XI., 1873, 



pp. 19-23. 



31. Note on a secondary colouring matter 



produced in the preparation of alizarin from 



anthracene. Chem. Soc. Journ. X.> 1872, pp. 



659-660. 



32. On anthrapurpurin. Chem. Soc. 



Journ. XL, 1873, pp. 425-433; American 

 Chemist, IV., 1874, pp. 53-56. 



Ferkin, William Henry, and Duppa, B. F. 9. 

 On the constitution of glyoxylic acid. Chem. 

 Soc. Journ. VI., 1868, pp. 197-210. 



Perkins, G. A. 2. The Cockroach and its 

 enemy, Ampulex sibirica, Fabr. American Natu- 

 ralist, I., 1868, pp. 293-296. 



3. Notes on the Cucuyo or West Indian 

 fire beetle (Elater noctilucus). American Natu- 

 ralist, II., 1869, pp. 422-432. 



4. The drivers (Anomma arcens), a species 

 of African ant. American Naturalist, III., 

 1870, pp. 360-364. 



Perkins, George H. Notice of a recent land- 

 slide on Mount Passaconaway. Amer. Journ. 

 Sci. XLIX., 1870, pp. 158-161. 



2. Notes on the Flora of Vermont. Ar- 

 chives of Science, I., 1870, pp. 65-71. 



3. Birds in their relation to Agriculture. 

 Archives of Science, I., 1870, pp. 129-149. 



4. Catalogue of the flowering plants of Ver- 

 mont. Archives of Science, I., 1870, pp. 161- 

 166, 181-190, 215-218, 231-234, 252-253. 



5. Notes on the Winooski marble of Ver- 

 mont. Archives of Science, I., 1870, pp. 218- 

 223. 



6. Notes on the geodes of Illinois. Ame- 

 rican Naturalist, V., 1871, pp. 698-705. 



7. Molluscan fauna of New Haven. Part 1. 



Cephalopoda and Gasteropoda ; Part 2. Acephala 

 and Bryozoa. Boston, Nat. Hist. Soc. Proc. 

 XIII., 1871, pp. 109-136, 139-163. 



8. Calculi from the stomach of a hocse. 



American Naturalist, VI., 1872, pp. 552-554. 



9. The flying Squirrel : Pteromys volucella, 

 Des. American Naturalist, VII., 1873, pp. 132- 

 139. 



Perkins, Henry C. 2. Formation and develop- 

 ment of the cumulus or thunder-cloud. [1865.] 

 Essex Institute Proc. IV., 1866, pp. cxxiii- 

 cxxxiv. 



3. The Eozoon in Essex county. Ameri- 

 can Naturalist, III., 1870, pp. 498-499. 



4. Circulation of the latex in the laticiferous 



vessels. Monthly Microsc. Journ. IV., 1870, 

 pp. 146-147 ; American Naturalist, IV., 1871, pp. 

 317-318. 



5. The Megatherium and its allies. Ame- 

 rican Naturalist, IV., 1871, pp. 763-765. 



Perl, Leopold. Anatomische Studien iiber com- 

 pensatorische Nierenhypertrophie. Virchow, 

 Archiv, LVL, 1872, pp. 305-315. 



Ferlewitz, Paul. Untersuchungen iiber die 

 Falle, in denen ein von zwei festen Puncten 

 angezogener oder abgestossener Punct eine El- 

 lipse oder Hyperbel beschreibt, deren Brenn- 

 puncte jene beiden Puncte sind. Zeitschr. Math. 

 Phys. XVIII., 1873, pp. 58-92. 



Ferley, Henry F. Gold mines and gold mining 

 in Nova Scotia. Canadian Naturalist, II., 1865, 

 pp. 198-218. 



Perls, M. 2. Zur vergleichenden Anatomie der 

 Zunge mit besonderer Beriicksichtigung ihrer 

 Nerven und Papillen. Konigsberg, Med. Jahrb. 

 IV., 1864, pp. 69-92. 



3. Nachweis von Eisenoxyd in gewissen 



Pigmenten. Virchow, Archiv, XXXIX., 1867, 

 pp. 42-48; Journ. Prakt. Chem. CV., 1868, pp. 

 281-287. 



4. Ueber den Kreatin-Gehalt der mensch- 



lichen Muskeln bei verschiedenen Krankheiten. 

 Deutsches Archiv Klin. Med. VI., 1869, pp. 

 243-265. 



Fernet, X. 2. Sur la decrepitation des sels. 



France, Congres Scient. XXXI., 1864, pp. 236- 



238. 

 Pernitza, Emil. Bau und Entwickelung des 



Erstlingsgefieders, beobachtet am Huhnchen. 



Wien, Akad. Sitzungsb. LXIIL, 1871 (Abth. 2), 



pp. 439-449. 

 Pernod, J. Preparation d'un extrait de garance 



pouvant etre applique directement sur les tissus. 



Paris, Acad. Sci. Compt. Rend. LXIV., 1867, 



pp. 1288-1289. 



Peron, Alphonse. Notice sur la geologic du can- 

 ton de Saint - Fargeau (Yonne). [1864.] 



Auxerre, Bull. Soc. Sci. XIX., 1865, pp. 149- 



194. 



2. Aper9u historique et observations sur 



1'invasion de sauterelles en Algerie en 1866. 

 Auxerre, Bull. Soc. Sci. XX., 1866, pp. 297- 

 331. 



3. Notice sur la geologic des environs 



d'Aumale (Algerie). Paris, Bull. Soc. Geol. 

 XXIIL, 1866, pp. 686-716. 



