Vaderlandsche letteroefeningen. Jaargang 1776

[p. 492]

Waarneemingen omtrent de lugts-gesteldheid, weder en wind, te Amsteldam, in September 1776.
Door Antonius Wilhelmus Schaaf, Med. Doct.

	Barometer.			Therm.			Winds streek.			Weder.
D.	's morg.	's midd.	's av.	mo.	mi.	av.	's morg.	's midd.	's av.	Gesteldh.
1	29.6	29.6½	29.6¾	61	68	62	Z	W	W	Reg. Held.
2	-	-4½	-4½	62	72	60	-	Z W	Z t W	Dond. Reg.
3	-4	-3½	-3½	60	64	60	-	Z t W	-	- Buijig.
4	-3½	-4	-5	60	70	60	W t N	W t N	W t N	Buijig.
5	-6	-7	-8	59	66	59	N W	-	-	-
6	-9½	-10½	-11	58	67	59	W	N W	N W	-
7	-11	-10	-9½	58	70	60	Z W	Z	Z O	Held. Wolk.
8	-5½	-4½	-6	59	64	59	Z t O	Z W	N W	Reg. Held.
9	-8½	-10	-11½	59	70	58	N O	N O	N O	Helder.
10	30.0½	30.0½	30.0½	58	70	61	O t N	O t N	O t N	-
11	-	-	-	59	70	63	-	Z W	Z W	- Wolk.
12	-0	-0	-0	63	71	66	Z W	-	-	Reg. Held.
13	-	-	29.11	63	72	63	-	-	-	Held. Wolk.
14	29.10½	29.9	-10	63	72	64	Z t O	Z	Z	-
15	-	-10½	-	64	73	63	W	W	N O	- Reg.
16	-9½	-	-11	62	68	63	N W	N W	N	- Wolk.
17	-11	-11	-10	61	65	59	W t Z	W t Z	Z W	- Reg.
18	-8½	-9½	-10½	58	64	58	N W	N t O	N t O	Buijig.
19	30.0	30.0½	30.1½	55	58	54	O	O	O	Helder.
20	-2	-2	-3	54	59	53	-	N O	N O	-
21	-3	-3½	-4	52	61	54	N O	-	-	- Wolk.
22	-3½	-3	-2	53	62	56	N W	N W	-	Betr. Held.
23	-1	29.11	29.11	54	62	55	N O	N O	-	Helder.
24	29.10½	-10½	-10½	54	63	56	O	W	W	-
25	-9½	-8½	-6½	45	68	61	Z	Z	Z	- Reg.
26	-4½	-4½	-5	62	70	62	-	Z t W	Z t W	Reg. Held.
27	-5½	-7	-8	60	67	59	W t Z	W t Z	W	Held. Wolk.
28	-7	-6½	-7	60	64	59	Z W	Z W	Z W	- Reg.
29	-8½	-10	-11½	60	66	58	N	N t O	N t O	-
30	29.11½	-11½	30.0	58	64	56	N O	N O	O	Betr. Held.

Hoogste Barometer d. 30.4	} middelb. d. 29.9¾
Laagste Barometer d. 29.3½	} middelb. d. 29.9¾
Hoogste Thermometer gr. 73.	} middelb. gr. 62½
Laagste Thermometer gr. 52.	} middelb. gr. 62½