Hagen] 



569 



[Hagen 



On the Hessian fly in Italy. Canad. Ent., 17, 1886, 



129-131. 

 White ants destroying living trees and changing UK: 



foliage, in Cambridge, Mass. Canad. Ent., 17, 1888, \'A\ - 



K'.O. 



Monograph of the Embidina. Canad. Ent., 17, 1885, 



141-155, 171-178, 190-199, 200-229. 



-Fossil injects. Nature, 32, 1885, 5:5-51. 

 Die Devonischen Insecten. Zool. An/,., 8, 1885, 296- 



301. 

 On the probable food of the larva of Scenopinus. 



Canad. Ent., 18, 1886, 73-74. 

 On the previous stages of Ptinidifi and allied groups. 



Canad. Ent., 18, 1886, 153-157. 

 On Gecidomyia Liriodendri. Canad. Ent., 18, 1886, 



159-160. 

 A new Phytoptocecidium from North America, on 



Achillea. Canad. Ent., 18, 1886, 174-175. 

 The highest elevation for Neuroptera in the United 



States. Canad. Ent., 18, 1886, 178-179. 

 On a new library pest. Canad. Ent., 18, 1886, 221- 



230. 

 The breastbone of the larva of Cecidomyia homologous 



to the labium. [1888.] Entomologica Amer., 1, 1885 



86, 229. 

 On Hemerobius (Psectra) dipteruH, nurm., and H. 



delicatulus, Fitch. [1880.] Entomologica Amer., 2, 



1886-87, 21-24. 

 Kurze Bemerkungen iiber das Fliigelgeader der In- 



secten. Wien. Ent. Xtg., 5, 1886, Bll~13. 

 Stray notes on Myrrneleonidffi. Canad. Ent., 19, 



1887, 89-9:-}, 110-112, 133-130, 147 150, 209-217; 20, 



1888, 34-38, 57-00, 72-74, 93-97, 185-191, 204-211. 

 -The larva of Ptinus latro, Fab. [1887. j Entomo- 

 logica Amer., 2, 1886-87, 232. 



A living Ixodes said to have been four months in the 



ear of a man. [1887.] Entomologica Amer., 3, 1887-88, 

 124-125. 



An unknown or forgotten illustration of North 

 American Hphingi'la.-. [1887.] Entomologica Amer., 

 3, 1887-88, 173-175. 



Ueber Plethus cursitans. Wien Zool. Bot. Verb., 37, 



1887 (Abh.), 043-646. 

 Ueber Neurohasis und Vestalis. Wien Zool. Bot. 



Verh., 37, 1887 (Abh.), 047-44*. 



Monograph of the Hemerobidae. [1886.] Boston 



Nat. Hist. Proc., 23, 1888, 250-209, 270-292. 



i '.ies of Hemerooius from Chili. Boston 



.Soc. Nat. Hist. Proc., 23, 1888, 505 500. 



On the genus Syrnpetrum, Newman. Entomologica 

 Amer., 4, 1888, 31-34. 



Unsere gegenwartige Kenntniss der Ephemeren. 



Stettin, Ent. Xtg., 49, 1888, 22) 232. 



1,'eber die frtiheren Zustande der Libellen, nebst 

 Andeutung iiber bildung des Thorax. Stettin, Hut. 

 Xtg., 50. 1889, 102-107. 



Spaltung eines Fliigels urn das doppelte Adernetz zu 

 zeigen. Zool. Anz., 12, 1889, 377-378. 



A synopsis of the odonat genus Leucorhinia, Britt. 



[With notes by Philip P. CALVKHT.] Amer. Ent. Soc. 

 Trans., 17, 1890, 229-230. 



' u'enwartige Kenntniss der Ephernerinen. 



Stettin, Ent'. Xtg., 51, 1890, 11-13. 



The female of Eutermes Rippertii. [1889.] Psyche, 



5, 1891. 203-208. 

 Synopsis of the Odonata of N. America. [1889-90. J 



Psyche, 5, 1891, 24) ;07. 



- Two species of /Eschna. [1890.] Psyche, 5, 1891, 



966. 

 Descriptions of some North American Cordulina. 



[1890.] Psyche, 5, 1891, Ml -ATA. 

 Notes and descriptions of some North American 



Libellulina. [1890.] Psyche, 5, 1891, 383-387. 



R. B. XV. 



Hagen, Ilc.nmmu Auyuxt (et alii). Note on the habitat of 

 Xyloryctes satyrus. [Correspondence.] Canad. Ent., 16, 

 1884, 239-240; 17, 1885, 39, 40, 58-60. 



Hagen, l\nyelirigt}. To for Skandinavien nye moser. 



Bot. Notiser, 1889, 155 150. 



- Index Muscorum frondosorum in alpibus Norvegiaa 

 meridioualis Lomsfjeldene et Jotunfjeldene hucusque 

 cognitorum. [1892.] Throndhjem, Hkr., 1888-90, 1-16. 



- Ad bryologiam Norvegiae contributiones sparsaa. [1892.] 

 Throndhjem, Skr., 1888-90, 32-40. 



Surquelques mousses norvegiennes. Kev. liryol., 18, 

 1891, 1-8. 



Un cas t^ratologique. Rev. Bryol., 18, 1891, 8-9. 



- Tetraplodon pallidus, n. p. [1894.] Throndhjem, 

 Skr., 1893, 75-76. 



- Om et tvivlsomt voksested for Pleurozia purpurea 

 (Light/.). [1894.] Throndhjem, Skr., 1893, 152-154, 



- Webera lutescens, Limpr., i Sverige ? Bot. Notiser, 

 1897, 171-172. 



Schedulsa bryologicae. Throndhjem, Hkr., 1897, No. 2, 

 30 pp.; He<lwigia, 37, 1898, (73). 



- Norges bryologi i det 18de arhundrede. Throndhjem, 

 Skr., 1897, No. 3, 195 pp. ; Bot. Centrbl., 73, 1898, 11-13. 



- De nova specie Polytrichi, Muscorum generis. Medd. 

 Grtfriland, 15, 1898, 444-445. 



- Notes bryologiques 1-20. Nyt Mag. Naturvid., 88, 

 1900, 321-341. 



Hagen, I \nyebriyt], & Conradi, /'. /<:. Hee Conradl & 



Hagen. 

 Hagen, I \ngtbrigt], 

 & Hagen. 



Hagen, / [ mji;hrii)i J, 

 Hagen, 



Katirin, Chr[istiari\. See Kanrin 



Ryan, I-',, tiee Ryan & Hagen. 



<in<ynje. *0n the reversion of *erie8 

 and its application to the solution of numerical equations. 

 [1883.] Amer.'Phil. Soc. Proc., 21, 1884, 93-101. 



- Auroras and synchronous magnetic disturbances in 

 1883. [1884.] Amer. Meteorol. Jl., 1 (1884-85), 203- 

 208. 



- On the deflection of the level due to solar and lunar 

 attraction. Astr. Nachr., 107, 1884, 378-880. 



- The laws of falling bodies. Sidereal Messenger, 4, 

 1885, 15-16. 



- On the brightness of the new variable star in Andro- 

 meda. Sidereal Messenger, 4, 1885, 285-286. 



- The variable star M Cephei. [1-89.] Astr. Jl., 9, 

 1890, 15-16. 



- Observations of some suspected variables. [1889.] 

 Atr. Jl., 9, 1890, 118. 



- Observations of variable stars, made at Georgetown 

 ilege Observatory. Astr. Jl., 9, 1890, 157-J58. 



- Light- variations of S Persei and T Arietis, between 

 the years 1883 arid 1888. [1890.] Astr. Jl., 10, 1891, 

 115-118, 152. 



Southern variable stars observed in 1889 and 1890. 

 Aatr. Jl., 10, 1891, 177-181. 



- Der Photochronograph angewandt auf Doppelstern- 

 messungen. Astr. Nachr., 128, 1891, 177-186. 



- Observations of the new star in Auriga. Astr. Jl., 11, 

 1892, 172-173. 



- Light-variations of S Persei and T Arietia. [1892.] 

 Atr. JL, 12, 1893, 47-48. 



- [Observations of the solar eclipse of 1892 October 20.] 

 At the Georgetown College Observatory. [1892.] Atr. 

 Jl., 12, 1893, 117. 



- Meteor-Hhower of 1892 November 23. [1892.] Antr. 

 Jl., 12, 1893, 145. 



- Pbotographische Bectaucensionsbestirnrnungen des 

 Kirius. Astr. Nachr., 132, 1893, 23-20. 



- BKBHKJ/S " Verdacht get" n die Uuv< -randerlichkeit der 

 Polhohe." Artr. Nadu., 130, 1894, 207-208. 



- Messungen von Doppelrteinen mittdst Photographic. 

 Astr. Nachr., 130, 1894, 303-304. 



- Das 12-zollige Aequatoreal der Steruwarte im George- 



72 



