INDEX TO VOLUMES I-xX. 
Page. 
Wild, Prof., cited on thermometry............ ix 33 
Williams, G. H., communication on the 
methods of modern petrography. Ab- 
BUNCE erspecdesvsscesn=-salaceub> sbraseanesve Stes vii 36 
Willis, Bailey, communication on the topog- 
raphy and structure in the Bays 
Mountains, Tennessee. Reference....K 7 
development of a perspective map from 
acontour map. Title only..........0.0000 Part!) 
Mount Rainier and its glaciers. Ab- 
BUNGE ssusccescess Reatenaeanedtate cadacencancventrestex x 10 
remarks on geology of Cascade Mount- 
HET Gee esr ee Bee eCCRRE ET Serer esnenstracne eeeatee ix 8 
Winchell, Alexander, communication on the 
progressive dispersion of mankind 
over the surface of the earth. Title 
ONLY... 2.008 pasmeenasahan cas shakes fackussaceatdsecesten Ail 32 
Wind and hygrometry....... AAT, vi 36 
TFUERW OVI UEACLION ..5cnsccccseboctascscuscesceneaasne iii 31 
retardation of storm centres..............+. v 108 
as related to barometric gradient............ i 106 
velocity ANd PLreSSULe.....seccceccesesecersees epee Ay 
Winds and barometric pressure-in relation 
to tides....... auuansayacnnasccserecdeeeaaeun Be eercss 4 53 
as related to ocean temperatures on the 
coast of New Hampshire........... 17 
observed in balloon ascensions 35 
ONGMOUNERIN SIOPCS;.<ccsccsccscssencecaceesscesses 38 
Wind-wrought errors in barometric observa- 
BONA eremcts sess cenesnaetence ance ases Seda scwavestsnacave v 91 
VEG VAM Gay EN OONY, Of: cccscssscveseccusverseccseteoces x 9 
Winlock, W. C., communication on comets 
II and III, 1884. Title only............ viii 16 
physical observations of Wolf’s comet 
(1884, III). Abstract. .........s.seeseeees vili 37 
Winter of 1882~’83, Prognostication for......w 122 
Woeikoff, Alexander, communication on the 
meteorology of Russia. Reference......4 75 
the results of a recent determination of 
the elevation of the Caspian and Aral 
S089. Abstract a iccccciecessses cases Saesasonstes ii 34 
meteorological observations in Peru, and 
some meteorological conditions of that 
country. Title only....... benttegetescascasait At 35 
Wood, Dr. H.C., Researches on inoculation 
of diphtheria by.............. iaveen ess Petraes iv 38 
Woodbury process of photo-printing........ i 42, 57 
Wooden pavements, Failure Of.............ee08 Ai 26 
Woodward, J. J., communication on the al- 
leged hermaphrodite described by 
Drs. Accly, Blackman, and Jackson. 
Abstract and reference.........+0+ Sct ae a 24 
he desirability of reproducing photo- 
graphs of scientific objects, and espe- 
cially of magnified microscopical 
preparations, in a permanent form by 
175. 
Page. 
Woodward, J. J., communication on—Cont’d. 
some photo-mechanical method. <Ab- 
SETACE ....0ecce0 Bieaaephnssiduanans'a seagas aaneaaea senate i 41 
the use of monochromatic sunlight as 
an aid to high-power definition. Ab- 
BUNACE GNA TEFERENCE ss asccvucecesescccssosevencees i 47 
the Woodbury photo-relief process. Ab- 
SETACE ....0ccene nededudonvepamsedaksbasiacqccactes velyeV i 57 
spectra and spectroscopes. Vo abstract, 
i 89 
micrometrie writing on glass. Title 
OMA snscces sssccadacscosscsee peeved caapessevesas Reexeehe i 93 
the similarity between the red blood- 
corpuscles of man and those of certain 
other mammals, especially the dog; 
considered in connection with the di- 
agnosis of blood stains in criminal 
eases. Abstract and reference............ ii 20 
the markings on Nayicula rhomboides. 
TRGLE OVD) sc actanctchaccanaceees aacanushaterenecesces ii 69 
the rulings on glass by Mr. Rogers, of 
Cambridge: Abstract ..5.s.scesetessvsesbencae ii 120 
the modern microscope, Nobert’s lines, 
and the attempts of others to con- 
struct them. Title OnLy.....ssc.s0 sesesees di 25 
diffraction phenomena in the field of 
the microscope. Abstract and refer- 
CNL Onisncsasiee aetnstnastaeiewanssiedonets Serta ii 60 
the microscopical structure of wool. 
Datla iON ire cea ccsdncttsades svcgivscotaveverenecesee fi 62 
the Papyrus Ebers. Abstract......... wii 64 
the use of photography in connection 
with the micrometer measurement of 
blood corpuscles. Title only.... .......dl 79 
asimple device for the illumination of 
balsam-mounted objects for examina- 
tion with certain immersion objectives 
whose “balsam angle” is 90° or up- 
wards. Jn full.) 1 fig“urre..ccccccacssecevese ii 126 
the apertometer of Prof. E. Abbe, of Jena, 
Germany. Abstract... .ccscccsecsssconcsones iii 18 
a standard for micrometry. Abstract, 
iii 22 
the oil-immersion objectives of Zeiss, 
and on convenient methods of obtain- 
ing oblique illumination for these and 
similar objectives. Abstract............d41 25 
& new apertometer for microscopic cb- 
jectives. Dttle- only icoccsssdscesccvcce kil 37 
some apparatus recently brought into 
use by the Medical Department of the 
Army for the examination of the eye. 
ALD BER EC Eosncccsscencdcancosncevssusccenevanteey econ iii 53 
Riddell’s binocular microscope—an his- 
torical notice. Abstract and refer- 
ONCE. cocccrcececcccreccssccrerecccssereccccsssscccecsshW 30 
