26th. Hazy morning (S.-E) cloudy; noon, a heavy windy looking bank in north (S. fresh), with dense cirrus fringe above on its upper edge; clear in S. 27th. Clear, warm, (W.); bank in north; noon bank covered all the northern sky, and fresh breeze; 10 P.M., a few flashes to the northward. 28th. Uniform dense cirro-stratus, (S. fresh); noon showers all round; 2 P.M., a heavy squall of wind, with thunder and rain (S.-W. to N.-W.); 8 P.M., a line of heavy cumuli in south; 8.30 P.M., a very bright and high cumulus in S.-W., protruding through a layer of dark stratus; 8.50 P.M., the cloud bearing E. by S., with three rays of electric light.[16] [Illustration: Fig. 17] _June_ 29th. A stationary stratus over all, (S.-W. light); clear at night, but distant lightning in S. 30th. Stratus clouds (N.-E. almost calm); 8 A.M., raining gently; 3 P.M., stratus passing off to S; 8 P.M., clear, pleasant. _July_ 1st. Fine and clear; 8 A.M., cirrus in sheets, curls, wisps, and gauzy wreathes, with patches beneath of darker shade, all nearly motionless; close and warm (N.-E.); a long, low bank of haze in S., with one large cumulus in S.-W., but very distant. _July_ 2d. At 5 A.M., overcast generally with hazy clouds and fog of prismatic shades, chiefly greenish-yellow; 7 A.M., (S.-S.-E. freshening,) thick in W; 8 A.M., (S. fresh) much cirrus, thick and gloomy; 9 A.M., a clap of thunder, and clouds hurrying to N.; a reddish haze all around; at noon the margin of a line of yellowish-red cumuli just visible above a gloomy-looking bank of haze in N.-N.-W., (S. very fresh;) warm, 86°; more cumuli in N.-W.--the whole line of cumuli N. are separated from the clouds south by a clear space. These clouds are borne rapidly past the zenith, but never get into the clear space--they seem to melt or to be turned off N.-E. The cumuli in N. and N.-W., slowly spreading E. and S.; 3 P.M., the bank hidden by small cumuli; 4 P.M., very thick in north, magnificent cumuli visible sometimes through the breaks, and beyond them a dark, watery back-ground, (S. strong); 4.30 P.M., wind round to N.-W. in a severe squall; 5 P.M., heavy rain, with thunder, &c.--all this time there is a bright sky in the south visible through the rain 15° high; 7 P.M., clearing, (S.-W. mod.) _July_ 3d. Very fine and clear, (N.-W.); noon, a line of large cumuli in N., and dark lines of stratus below, the cumuli moving eastward; 6 P.M., their altitude 2° 40′. Velocity 1° per minute; 9 P.M., much lightning in the bank north.[17] _July_ 4th. 6 A.M., a line of small cumulo-stratus, extending east and west, with a clear horizon north and south 10° high. This band[18] seems to have been thrown off by the central yesterday, as it moves slowly south, preserving its parallelism, although the clouds composing it move eastward. Fine and cool all day--(N.-W. mod.)--Lightning in N. _July_ 5th. Cloudy (N. almost calm), thick in E., clear in W.; same all day.