The new air world - Willis L. Moore

Comparison of Centigrade and Fahrenheit. Only Fahrenheit and Centigrade are in general use. [Figure 5] is designed to enable observers to convert temperature readings from one scale to the other without resorting to a mathematical formula. For precise reductions the following rules apply:

To convert Fahrenheit to Centigrade: Subtract 32 and multiply by five ninths.

To convert Centigrade to Fahrenheit: Multiply by nine fifths and add 32.

Humidity Affects Health and Complexion. The importance to health of maintaining a proper humidity in living quarters during the winter months and during all months in the arid and semi-arid regions of the West is not fully appreciated. Each habitation should be supplied with one to several hygrometers (Fig. 6), and frequent readings should be taken of the dry and the wet bulb thermometers so as to be familiar with the conditions under which one is living.

RELATIVE HUMIDITY TABLES

Temperature Readings in Degrees Fahrenheit. Relative Humidity Readings in Per Cent.
Barometric Pressure 29.0 inches.

READINGS OF DRY BULB THERMO-METER	DIFFERENCE IN DEGREES FAHRENHEIT BETWEEN WET AND DRY BULB THERMOMETERS.



	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21


20	85	70	56	42	28	14
21	86	71	57	44	30	17	3
22	86	72	59	45	32	19	7
23	87	73	60	47	34	22	10
24	87	74	61	49	36	24	12	0

25	87	75	63	50	38	27	15	4
26	88	75	64	52	40	29	18	7
27	88	76	65	53	42	31	20	9
28	88	77	66	55	44	33	23	12	2
29	89	78	67	56	45	35	25	15	5

30	89	78	68	57	47	37	27	17	8
31	89	79	69	58	49	39	29	20	10	1
32	90	79	69	60	50	41	31	22	13	4
33	90	80	71	61	52	42	33	24	16	7
34	90	81	72	62	53	44	35	27	18	9	1

35	91	82	73	64	55	46	37	29	20	12	4
36	91	82	73	65	56	48	39	31	23	14	6
37	91	83	74	66	58	49	41	33	25	17	9	1
38	91	83	75	67	59	51	43	35	27	19	12	4
39	92	84	76	68	60	52	44	37	29	21	14	7

40	92	84	76	68	61	53	46	38	31	23	16	9	2
41	92	84	77	69	62	54	47	40	33	26	18	11	5
42	92	85	77	70	62	55	48	41	34	28	21	14	7	0
43	92	85	78	70	63	56	49	43	36	29	23	16	9	3
44	93	85	78	71	64	57	51	44	37	31	24	18	12	5

45	93	86	79	71	65	58	52	45	39	33	26	20	14	8	2
46	93	86	79	72	65	59	53	46	40	34	28	22	16	10	4
47	93	86	79	73	66	60	54	47	41	35	29	23	17	12	6	1
48	93	87	80	73	67	60	54	48	42	36	31	25	19	14	8	3
49	93	87	80	74	67	61	55	49	43	37	32	26	21	15	10	5

RELATIVE HUMIDITY TABLES—Continued

READINGS OF DRY BULB THERMO-METER	DIFFERENCE IN DEGREES FAHRENHEIT BETWEEN WET AND DRY BULB THERMOMETERS.



	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21


20	85	70	56	42	28	14
21	86	71	57	44	30	17	3
22	86	72	59	45	32	19	7
23	87	73	60	47	34	22	10
24	87	74	61	49	36	24	12	0

25	87	75	63	50	38	27	15	4
26	88	75	64	52	40	29	18	7
27	88	76	65	53	42	31	20	9
28	88	77	66	55	44	33	23	12	2
29	89	78	67	56	45	35	25	15	5

30	89	78	68	57	47	37	27	17	8
31	89	79	69	58	49	39	29	20	10	1
32	90	79	69	60	50	41	31	22	13	4
33	90	80	71	61	52	42	33	24	16	7
34	90	81	72	62	53	44	35	27	18	9	1

35	91	82	73	64	55	46	37	29	20	12	4
36	91	82	73	65	56	48	39	31	23	14	6
37	91	83	74	66	58	49	41	33	25	17	9	1
38	91	83	75	67	59	51	43	35	27	19	12	4
39	92	84	76	68	60	52	44	37	29	21	14	7

40	92	84	76	68	61	53	46	38	31	23	16	9	2
41	92	84	77	69	62	54	47	40	33	26	18	11	5
42	92	85	77	70	62	55	48	41	34	28	21	14	7	0
43	92	85	78	70	63	56	49	43	36	29	23	16	9	3
44	93	85	78	71	64	57	51	44	37	31	24	18	12	5

45	93	86	79	71	65	58	52	45	39	33	26	20	14	8	2
46	93	86	79	72	65	59	53	46	40	34	28	22	16	10	4
47	93	86	79	73	66	60	54	47	41	35	29	23	17	12	6	1
48	93	87	80	73	67	60	54	48	42	36	31	25	19	14	8	3
49	93	87	80	74	67	61	55	49	43	37	32	26	21	15	10	5

READINGS OF DRY BULB THERMO-METER	DIFFERENCE IN DEGREES FAHRENHEIT BETWEEN WET AND DRY BULB THERMOMETERS.



	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21


20	85	70	56	42	28	14
21	86	71	57	44	30	17	3
22	86	72	59	45	32	19	7
23	87	73	60	47	34	22	10
24	87	74	61	49	36	24	12	0

25	87	75	63	50	38	27	15	4
26	88	75	64	52	40	29	18	7
27	88	76	65	53	42	31	20	9
28	88	77	66	55	44	33	23	12	2
29	89	78	67	56	45	35	25	15	5

30	89	78	68	57	47	37	27	17	8
31	89	79	69	58	49	39	29	20	10	1
32	90	79	69	60	50	41	31	22	13	4
33	90	80	71	61	52	42	33	24	16	7
34	90	81	72	62	53	44	35	27	18	9	1

35	91	82	73	64	55	46	37	29	20	12	4
36	91	82	73	65	56	48	39	31	23	14	6
37	91	83	74	66	58	49	41	33	25	17	9	1
38	91	83	75	67	59	51	43	35	27	19	12	4
39	92	84	76	68	60	52	44	37	29	21	14	7

40	92	84	76	68	61	53	46	38	31	23	16	9	2
41	92	84	77	69	62	54	47	40	33	26	18	11	5
42	92	85	77	70	62	55	48	41	34	28	21	14	7	0
43	92	85	78	70	63	56	49	43	36	29	23	16	9	3
44	93	85	78	71	64	57	51	44	37	31	24	18	12	5

45	93	86	79	71	65	58	52	45	39	33	26	20	14	8	2
46	93	86	79	72	65	59	53	46	40	34	28	22	16	10	4
47	93	86	79	73	66	60	54	47	41	35	29	23	17	12	6	1
48	93	87	80	73	67	60	54	48	42	36	31	25	19	14	8	3
49	93	87	80	74	67	61	55	49	43	37	32	26	21	15	10	5

READINGS OF DRY BULB THERMO-METER	DIFFERENCE IN DEGREES FAHRENHEIT BETWEEN WET AND DRY BULB THERMOMETERS.



	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21


20	85	70	56	42	28	14
21	86	71	57	44	30	17	3
22	86	72	59	45	32	19	7
23	87	73	60	47	34	22	10
24	87	74	61	49	36	24	12	0

25	87	75	63	50	38	27	15	4
26	88	75	64	52	40	29	18	7
27	88	76	65	53	42	31	20	9
28	88	77	66	55	44	33	23	12	2
29	89	78	67	56	45	35	25	15	5

30	89	78	68	57	47	37	27	17	8
31	89	79	69	58	49	39	29	20	10	1
32	90	79	69	60	50	41	31	22	13	4
33	90	80	71	61	52	42	33	24	16	7
34	90	81	72	62	53	44	35	27	18	9	1

35	91	82	73	64	55	46	37	29	20	12	4
36	91	82	73	65	56	48	39	31	23	14	6
37	91	83	74	66	58	49	41	33	25	17	9	1
38	91	83	75	67	59	51	43	35	27	19	12	4
39	92	84	76	68	60	52	44	37	29	21	14	7

40	92	84	76	68	61	53	46	38	31	23	16	9	2
41	92	84	77	69	62	54	47	40	33	26	18	11	5
42	92	85	77	70	62	55	48	41	34	28	21	14	7	0
43	92	85	78	70	63	56	49	43	36	29	23	16	9	3
44	93	85	78	71	64	57	51	44	37	31	24	18	12	5

45	93	86	79	71	65	58	52	45	39	33	26	20	14	8	2
46	93	86	79	72	65	59	53	46	40	34	28	22	16	10	4
47	93	86	79	73	66	60	54	47	41	35	29	23	17	12	6	1
48	93	87	80	73	67	60	54	48	42	36	31	25	19	14	8	3
49	93	87	80	74	67	61	55	49	43	37	32	26	21	15	10	5