1893.] MICROSCOPICAL JOURNAL. 341 



Proboscis of Bee, 120. 

 Acarus of Xyclope, 120. 

 Proboscis of Blow fly, 40. 

 Parasite of Sorex araueiis, 120. 



Specime?is of Diatoms. 



Ortliosira dikieii iu fission, 1,000. 



Gomphonema gemiuatuni, 1,200 (6 inches long). 



Arachnoidiscus, four shells, 120. 



Arachnoidiscus, one shell (6 inches across), 408. 



Portion of same, near center, 2162. 



Portion of same, near margin, 2064. 



Actynoptychus undulatus (var), 750. 



Actynoptychus (portion of same), 3780 (14,288,400 times magnified). 



Actynoptychus (portion of same), 22,680 (514,372,400 times magni- 

 fied). 



Eupodiscus, fossil from Bermuda, 1,040. 



Coscinodiscus oculosiridis, 480 (5 inches across). 



Triceratium favus from the Thames, Lambeth, 1104 (4>< inches a 

 side). 



Pleurosigma formosum, 4320. 



Navicula didyma, 1800 (5 inches long). 



Auliscus sculptus, 1800 (5^^ inches across). 



Dictyocha fibula, 1800. 



Pleurosigma angulatum, 4320 (18,662,400 times magnified showing 

 21 lines to 2 inches width). 



Pleurosigma angulatum, 14,400 (207,360,000 times magnified 20 lines 

 to j}4 inches). 



Pleurosigma elongatum, 4320. 



Pleurosigma elongatum, 51,840, (2,687,385,600 Times magnified 16 

 lines in 5}^ inches of foot rule). 



Pleurosigma elongatum, 155,520 (24,186,470,400 Times magnified 5 

 lines to 5^ inches of foot rule). 



Isthmia nervosa, on sea weed, 120. 



Isthmia enervis, on sea weed, 120. 



Campylodiscus clypeus, Franzenbad Bohemia, 120. 



Specimens from plattt life. 



Raphides or crystals iu skin of garlic, 250. 



Raphides or crystals in skin of garlic, 1,200. 



Stomata on under leaf of Box, 900. 



Section of stem of Aloe, 40. 



Transverse section of Birch, 40. 



Longitudinal section of Spruce, 40. 



Stellate, sciliceous hairs from leaf of Dentzia scabra, 120, 



Lower epidermis of Galium mollugo, 120. 



Chara (globule extruding spores), 150. 



