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Cramer, C. — Dasycladacex 464 



Strokmfelt, H. F. G. — New Oenera of Phxozoosporem 4G5 



Gay, Y.—Ulothrix 465 



Kitton, F. — Netv Species of Biddulphia from Fiji 466 



Pantoosek, J. — Fossil Diatoms of Hungary 466 



Lichenes. 



Moller, A. — Culture of Lichen-forming Ascomycetes without Algx 466 



Fungi. 



Magnus, P. — Sterility of Fungi 467 



Patouii/lard, N. — Classification of the Agaricinex 467 



Morot, L. — Identity of Polyporus abietinus Fr. and Irpex fusco-violaceus Fr. . . 468 



Gasperini, G. — Polymorphism of the Hyphomyceles 468 



Zopf, W. — Cultivation of Phycomycetes 469 



Berlese, A. N. — Pleospora .. .. f 469 



Hartig, R. — Trichosphzeria paradoxa and Herpotrichia nigra 470 



Johanson, G J.— Taphrina 470 



Seymour, A. B. — Character of the Injuries produced by Parasitic Fungi upon 



their Host-plants 470 



Tubetjp, C. v. — New Disease of the Douglas-pine 471 



Brunchorst, J. — New Potato-disease 471 



Thumen, F. v., & E. Rathay — New Vine-disease 471 



Moniez, R. — New Parasite of the Silk-worm 471 



Protophyta. 



Bornet, E., & C. Flahault — Filamentous Heterocystous Nostochinese 472 



Smith, J. A. — New Chromogenic Bacillus — Bacillus ccerideus .. .. 472 



Baumgarten, P. — Scheurlen's Cancer Bacillus 472 



„ „ Spore-formation in the Bacillus of Glander 8 473 



Engelmann, T. W. — Bacterio-purpurin 473 



MICEOSCOPY. 



a. Instruments, Accessories, &c. 



(1) Stands. 



Nachet's (A.) Crane-arm Microscope (Fig. 62) 475 



Doiaige's Travelling Microscope (Fig. 63) 476 



Nelson's (E. M.) Mechanical Stage .. .. 477 



Fine- adjustment by tilting the Stage (Figs. 64-73) 478 



Minot, C. S. — " American Microscopes — A Complaint " 482 



(2) Eye-pieces and Objectives. 



Swift, J. — The Jena Optical Glass (Figs. 74 and 75) 486 



(3) Illuminating and other Apparatus. 



Dumaige's Camera Lucida (Fig. 76) , 487 



EYE-8HADES , 488 



Dumaige's Nose-piece for Changing Objectives (Fig. 77) 488 



Malassez's (L.) Hot Stage (Fig. 78) 488 



Hallsten's (K.) " Compressorium " (Fig. 79) 489 



Hardy's (J. D.) Growing Slide (Fig. 80) 489 



Schieck's (J. W.) Microscope Lamps (Figs. 81-84) 490 



Gerlach's Embryoscope (Figs. 85 and 86) , 491 



(4) Photomicrography. 

 (5) Microscopical Optics and Manipulation. 



Poulton, E. B. — Learning to see with the Microscope 495 



Reichebt, C. — Cover-correction 496 



Beck, R. & J. — Adjusting an Objective for the Thickness of the Cover-glass 



(Figs. 87-92) 497 



Royston-Pigott, G. \V .—Villi on the Scales of Butterflies and Moths 498 



Smith, T. F. — New Appearances in Podura Scale 499 



" New Glass just made in Sweden" 499 



