( 915 ) 
INDEX. 
A. 
Abbe Drawing Apparatus, new Modifi- 
cation, 263. 
Measuring Apparatus for Physicists, 
876. 
Method and Apparatus for Deter- 
mination of Focal Lengths, 678. 
Abbe, E., Determination of Focal Length 
of Optical Systems, 427. 
, Microscopic Image of Transparent 
Bodies, 427. 
Abbott, A. C., Principles of Bacteriology, 
539, 853. 
Abdominal Ring in Hymenoptera, Ar- 
ticulation, 357. 
Segment of Embryo Insects, Ap- 
pendages of First, 777. 
Aberson, J. H., Bacillus denitrificans, 
407. 
Abietineae, Wings of Seed of, 505. 
Acacias and Ants, 359. 
Acanthocephala, Nephridia of, 371. 
Acanthodriloid Earthworms from New 
Zealand, 206. 
Acanthodrilus multiporus, Development, 
611. 
Acaridae, Relations to Arachnida, 784. 
Acephala, Mantle Margin of, 772. 
Achard, — Experimental Study of Osteo- 
myelitis, of Staphylococci, and Strep- 
tococci, 253. 
Achnantheae, Classification, 656. 
Acid Nutritive Media, Growth of Bacteria 
on, 694. 
, Phosphoric, Influence on Formation 
of Chlorophyll, 235. 
Acqua, C., Tonoplasts, 57. 
Acridium peregrinum, Fungus-parasites on, 
80. 
Actidesmium , 77. 
Actiniae, Revision of British, 216. 
Actinomyces, 84. 
Actinozoa, Morphology, 215. 
Adjustment, Fine-, of Beck’s Pathological 
Microscope, 859. 
, Swift’s Substage Fine-, 302, 421. 
, Watson’s Fine-, 911. 
Adriatic Sponges, 378, 493. 
Adulteration, Detection in Linseed and 
Linseed-oil Cake, 164. 
iEcidiospores, Retarded Germination, 522. 
AEdocladium gen. nov., 397. 
iEdogoniaceae, a new Genus of, 397. 
JEgagropilae, 828. 
AEolosoma, Encystments, 40, 481. 
AEquorea Forskalea, Segmentation of Ovum 
of, 799. 
Aeration of Tissues, 391. 
Aerobic Ferment, Denitrifying, found in 
Straw, 530. 
^Etiology of Tetanus, 249. 
African CEstridae, 600. 
Earthworms, New Genus, 39. 
, East, Coral Reefs, 490. 
Uredineae, 525. 
Agar-agar, Automatic Device for Rolling 
Culture Tubes of Nutrient, 556. 
Agaricineae, Vascular Hyphae, 526. 
Agarics, Preparing, 288. 
Agassiz, A., Calamocrinus Diomedx , 277. 
, Voyage of “ Albatross,” 349. 
Air, Composition of, contained within 
Seed-vessels, 516. 
- — , Diffusion of Tetanus Spores through, 
846. 
breathing Mollusca of United States, 
195. 
in Freiburg, Bacteriological Exami- 
nation, 844. 
Alary Nerve of Coleoptera, Roots, 471. 
Albuminoids, Composition of, 497. 
Albuminous Nutrient Media, Cold- 
sterilized, 693. 
Alcock, A., Commensalism between a 
Gymnoblastic Anthomedusoid and a 
Scorpaenoid Fish, 760. 
, Embryonic History of Pteroplatxa 
micrura , 588. 
, Indian Deep-sea Dredging, 193, 361. 
, Stridulating Apparatus of Red Ocy- 
pode Crab, 786. 
, Utero-gestation in Trygon Bleekeri, 
588. 
Alcohol, Method of Substituting Strong, 
for Watery Solution, 696. 
Alcoholic Fermentation with Saccharo - 
myces apiculatus, 72. 
