552 
MR, J. NORMAN LOCKYER ON THE 
V. Description of the Brazilian Photographs— page. 
Photographs near beginning of totality. 578 
Photographs about mid-eclipse. 579 
Photographs taken near end of totality. 580 
Photographs taken out of totality. 580 
VI. The forms of the prominences— 
Monochromatic images. 581 
Forms in different radiations. 582 
Effects of movement. 582 
Part II.—Discussion of the Observations. 
VII. The Interpretation of the Photographs— 
Comparison of the results to he expected from slit and slitless spectro¬ 
scopes . 583 
Corona. 584 
Chromosphere and prominences. 585 
Comparison of methods in the case of atmospheric layers. 585 
Comparison of methods in the case of vapours close to photosphere . . 588 
Interpretation of photographs taken during totality. 589 
Interpretation of photographs taken out of totality. 591 
VIII. The Spectrum of the Corona— 
List of coronal radiations. 592 
Comparison with results obtained by slit spectroscopes. 593 
Comparison with Fraunhofer spectrum .. 594 
Comparison with prominence spectrum. 594 
The “ Continuous ” spectrum. 595 
IX. The Variability of the Spectrum of the Corona— 
General comparison of the 1893 results with earlier observations . . . 595 
Variation of hydrogen. 596 
Reference to helium. 598 
Reference to unknown radiations. 598 
Variability of the continuous spectrum. 599 
X. Wave-lengths and Intensities of the Prominence and Chromosphere Lines— 
Determination of the wave-lengths. 600 
Determination of intensities. 601 
XI. The Loci of Absorption in the Solar Atmosphere— 
The spectra of prominences and chromosphere at different heights . . 601 
The “Reversing Layer ’’. 603 
The brightness of the arcs at different levels. 607 
XII. General Conclusions. 608 
Tables. 
I. List of chromosphere and prominence lines. 610 
II. Wave-lengths and intensities of lines in the spectrum of prominence No. 13 . 616 
III. Spectrum of chromosphere at top and bottom. 618 
