Medical Inquiries and Observations, Vol. 4 / The Second Edition, Revised and Enlarged by the Author - Benjamin Rush

METEOROLOGICAL OBSERVATIONS,
MADE IN PHILADELPHIA.
AUGUST, 1797.

D.	Ther.		Barom.		Winds and Weather.
1	73	75	30	0	S. E. E. Rain in the forenoon and afternoon.
2	72	76	30	0	N. E. by E. Cloudy, with rain in the afternoon and night. Wind E. by N.
3	72	78	30	6	E. ½ N. Rain in the morning, and all day and night.
4	72	78	30	4	E. Rain hard all day and at night.
5	74	79	29	84	Wind light, S. W. Cloudy. Rain this morning. The air extremely damp; wind shifted to N. W. This evening heavy showers, with thunder.
6	73	76	30	86	W. N. W. Cloudy.
7	70	76	30	4	N. W. Close day. Rain in the evening and all night. Wind to E.
8	72	76	29	95	E. Rain this morning.
9	72	76	29	86	S. W. Cloudy morning.
10	69	73	30	16	N. W. Clear.
11	70	74	30	25	N. W. Clear. Rain all night.
12	71	74	30	5	S. W. Cloudy. Rain in the morning. Cloudy all day. Rain at night.
13	73	75	29	87	S. W. Cloudy. Rain all day.
14	70	74	29	9	N. W. Clear fine morning.
15	56	60	30	15	N. W. Clear fine morning.
16	60	64	30	24	N. W. Clear fine morning.
17	60	65	30	24	N. W. Air damp.
18	68	75	30	4	S. W. Cloudy. Rain, with thunder at night: a fine shower.
19	72	78	29	7	N. W. Clear. Cloudy in the evening, with thunder.
20	70	77	29	8	W. N. W. Fine clear morning.
21	74	76	29	9	N. W. Clear to E.
22	68	76			E. Small shower this morning. Hard shower at 11, A. M. Wind N. E.
23	71	76	29	92	E. Cloudy. At noon calm.
24	71	75	29	95	Calm morning and clear.
25	70	75	30	5	N. E. Clear. Rain in the afternoon, with thunder.
26	70	75	30	5	S. E. Rain in the morning. Rained hard in the night, with thunder, N. W.
27	68	76	29	9	N. W. Fine clear morning.
28	64	75	29	96	N. W. Clear.
29	59	70	30	0	E. Clear.
30	70	76	30	1	E. by S. Rain in the morning.
31	68	74	30	14	S. E. Cloudy. Damp air and sultry.

SEPTEMBER, 1797.

D.	Ther.		Barom.		Winds and Weather.
1	73	80	30	6	S. W. Cloudy. Damp air. Rain in the morning.
2	79	80	29	9	N. W. Clear. Cloudy in the evening, with lightning to the southward.
3	68	74	30	0	N. by W. Cloudy. Clear in the afternoon and night.
4	66	74	30	7	W. N. W. Clear fine morning.
5	58	73	30	1	N. W. Clear. Cloudy in the evening.
6	58	72	30	13	Fresh at E. Clear. Rain in the evening.
7	56	76	30	28	E. Clear. Cloudy in the evening.
8	54	65	30	1	N. E. Clear and cool morning. Flying clouds at noon.
9	56	65	30	1	E. N. E. Clear.
10	58	63	30	26	N. E. Clear fine morning. Wind fresh at N. E. all day.
11	53	64	30	13	N. to E. with flying clouds.
12	51	62	30	6	W. N. W. Clear cool morning.
13	56	67	30	3	S. W. Cloudy. Clear in the afternoon.
14	64	70	29	98	S. W. Clear.
15	66	73	29	85	S. W. Rain in the morning. Cloudy in the afternoon.
16	62	70	29	95	N. W. Clear.
17	56	67	30	0	N. W. Clear.
18	58	63	29	88	E. Cloudy. Rained all day, and thunder. Rained very heavy at night.
19	55	63	29	75	W. N. W. Clear fine morning.
20	47	63	30	8	W. N. W. Clear fine morning. New moon at 9 50 morning.
21	46	60	30	0	N. E. Clear fine morning; to S. E. in the evening. Cloudy at night.
22	56	65	30	4	N. W. Rain in the morning. Rain at night.
23	56	66	30	0	N. N. E. Cloudy.
24	52	66	29	9	E. by S. Clear fine morning. Cloudy at night.
25	56	68	29	37	W. N. W. Clear fine morning; clear all day.
26	58	68	29	95	E. In the morning flying clouds.
27	48	63	30	2	N. W. Clear fine morning; clear all day.
28	48	63	30	2	W. N. W. Clear fine morning; clear all day.
29	54	63	30	15	E. Clear fine morning.
30	60	65	30	26	E. Fresh. Cloudy morning. Rain in the night.

OCTOBER, 1797.

D.	Ther.		Barom.		Winds and Weather.
1	55	65	30	16	N. E. Rain this morning, and great, part of the day.
2	55	66	30	0	N. W. Clear.
3	60	70	29	9	S. E. Clear. Air damp.
4	60	70	29	5	W. N. W. Rain this morning.
5	46	60	30	0	W. N. W. to S. by W. in the evening. Clear all day. White frost this morning.
6	55	65	30	0	S. W. Clear fine morning. White frost.
7	56	76	30	0	S. W. Cloudy. Rain in the night.
8	56	70	30	29	S. Cloudy this morning; air damp. Wind shifted to W. N. W. Blows fresh.
9	50	60	29	85	W. N. W. Clear morning. Fresh at N. W. in the evening.
10	40	58	30	1	W. N. W. Clear. Frost this morning.
11	38	56	30	2	W. N. W. Cloudy.
12	34	52	30	38	W. N. W. Clear. Ice this morning.
13	35	55	30	5	N. Clear fine morning. Ice this morning.
14	40	60	30	28	N. E. Cloudy.
15	50	65	30	16	W. N. W. Clear.
16	36	56	30	2	W. N. W. Clear fine morning.
17	37	56	30	18	W. N. W. Clear fine morning.
18	47	60	29	86	W. N. W. Clear fine weather.
19	48	60	30	6	W. N. W. Clear fine day.
20	42	55	30	8	N. E. Cloudy. Rain in the afternoon and night. Blows fresh at N. E.
21	42	50	29	92	N. E. Blows fresh (with a little rain). Thunder in the night, with rain.
22	44	56	29	57	N. W. Rain in the morning.
23	44	56	29	95	S. W. Clear fine morning.
24	42	54	30	5	N. E. Cloudy. A great deal of rain in the night.
25	40	52	30	15	N. E. Clear fine morning.
26	36	48	30	29	W. N. W. Clear.
27	34	46	30	23	Fresh at S. W. Clear.
28	40	52	29	95	W. N. W. Cloudy.
29	34	46	29	82	W. Cloudy.
30	32	42	29	93	N. W. Clear. Hard frost this morning.
31	38	48	30	18	W. S. W. Cloudy part of this day; clear the remainder.

In addition to the register of the weather it may not be improper to add, that moschetoes were more numerous during the prevalence of the fever than in 1793. An unusual number of ants and cockroaches were likewise observed; and it was said that the martins and swallows disappeared, for a while, from the city and its neighbourhood.

A disease prevailed among the cats some weeks before the yellow fever appeared in the city. It excited a belief in an unwholesome state of the atmosphere, and apprehensions of a sickly fall. It generally proved fatal to them.