...mainly by the incandescence of matter heated to high temperatures by reason of its proximity to the Sun. The bolometric observations at Flint Island were designed...quantity and quality of the coronal radiation. APPARATUS. Referring to the accompanying illustration, a concave mirror of 5ocm diameter and only 1oocm focus,...

...mainly by the incandescence of matter heated to high temperatures by reason of its proximity to the Sun. The bolometric observations at Flint Island were designed...quantity and quality of the coronal radiation. APPARATUS. Referring to the accompanying illustration, a concave mirror of 50"" diameter and only 10ocm focus,...

...referred to and to measure more definitely the quantity and quality of the coronal radiationAPPARATUS A concave mirror of 50 centimeters diameter and only...clock, served to produce a very intense image of the corona. 1 A small guiding telescope was attached to the mirror frame, so that the observer might point...

...in the reference last cited, he misinterpreted the position of the bolometer in the coronal image. The bolometric observations at Flint Island were designed...definitely the quantity and quality of the coronal radiation1 See Astrophysical Journal, vol. 12, pp. 71-75 ; also pp. 366-375, 1900. ''The 1900 Solar...

...Journal, vol. 21, pp. 194-195, 1905. APPARATUS A concave mirror of 50 centimeters diameter and only IOO centimeters focus, mounted equatorially and driven...clock, served to produce a very intense image of the corona.1 A small guiding telescope was attached to the mirror frame, so that the observer might point...

...Incandescence of matter heated to high temperatures by reason of Its proximity to the sun. The bolometrlc observations at Flint Island were designed to test...clock, served to produce a very intense image of the corona. A small guiding telescope was attached to the mirror frame so that the observer might point...

...mainly by the incandescence of matter heated to high temperatures by reason of its proximity to the sun. The bolometric observations at Flint Island were designed...measure more definitely the quantity and quality of the coronai radiation. Apparatus. — A concave mirror of 50 centimeters diameter and only 100 centimeters...