50 | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 40 | 38 | 37 | 50 51 | 50 | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 39 | 38 | 51 52 | 51 | 50 | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 40 | 52 53 | 52 | 51 | 50 | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 53 54 | 53 | 52 | 51 | 50 | 50 | 49 | 47 | 46 | 45 | 44 | 43 | 42 | 54 | | | | | | | | | | | | | 55 | 54 | 53 | 53 | 52 | 51 | 50 | 49 | 48 | 47 | 46 | 44 | 43 | 55 56 | 55 | 54 | 54 | 53 | 52 | 51 | 50 | 49 | 48 | 47 | 45 | 44 | 56 57 | 56 | 55 | 55 | 54 | 53 | 52 | 51 | 50 | 49 | 48 | 47 | 46 | 57 58 | 57 | 56 | 56 | 55 | 54 | 53 | 52 | 51 | 50 | 49 | 48 | 47 | 58 59 | 58 | 57 | 57 | 56 | 55 | 54 | 53 | 52 | 51 | 50 | 49 | 48 | 59 | | | | | | | | | | | | | 60 | 59 | 58 | 58 | 57 | 56 | 55 | 54 | 53 | 52 | 51 | 50 | 49 | 60 61 | 60 | 59 | 59 | 58 | 57 | 56 | 55 | 54 | 53 | 52 | 51 | 50 | 61 62 | 61 | 60 | 60 | 59 | 58 | 57 | 56 | 55 | 54 | 53 | 52 | 52 | 62 63 | 62 | 61 | 61 | 60 | 59 | 58 | 57 | 56 | 55 | 55 | 54 | 53 | 63 64 | 63 | 62 | 62 | 61 | 60 | 59 | 58 | 57 | 56 | 56 | 55 | 54 | 64 | | | | | | | | | | | | | 65 | 64 | 63 | 63 | 62 | 61 | 60 | 59 | 59 | 58 | 57 | 56 | 55 | 65 66 | 65 | 64 | 64 | 63 | 62 | 61 | 60 | 60 | 59 | 58 | 57 | 56 | 66 67 | 67 | 66 | 65 | 64 | 63 | 62 | 61 | 61 | 60 | 59 | 58 | 57 | 67 68 | 68 | 67 | 66 | 65 | 64 | 63 | 62 | 62 | 61 | 60 | 59 | 58 | 68 69 | 69 | 68 | 67 | 66 | 65 | 64 | 63 | 63 | 62 | 61 | 60 | 59 | 69 | | | | | | | | | | | | | 70 | 70 | 69 | 68 | 67 | 67 | 66 | 65 | 64 | 63 | 62 | 61 | 61 | 70 71 | 71 | 70 | 69 | 68 | 68 | 67 | 66 | 65 | 64 | 63 | 62 | 62 | 71 72 | 72 | 71 | 70 | 69 | 69 | 68 | 67 | 66 | 65 | 64 | 63 | 63 | 72 73 | 73 | 72 | 71 | 70 | 70 | 69 | 68 | 67 | 66 | 66 | 65 | 64 | 73 74 | 74 | 73 | 72 | 71 | 71 | 70 | 69 | 68 | 67 | 67 | 66 | 65 | 74 | | | | | | | | | | | | | 75 | 75 | 74 | 73 | 72 | 72 | 71 | 70 | 69 | 68 | 68 | 67 | 66 | 75 76 | 76 | 75 | 74 | 73 | 73 | 72 | 71 | 70 | 69 | 69 | 68 | 67 | 76 77 | 77 | 76 | 75 | 74 | 74 | 73 | 72 | 71 | 70 | 70 | 69 | 68 | 77 78 | 78 | 77 | 76 | 75 | 75 | 74 | 73 | 72 | 71 | 71 | 70 | 69 | 78 79 | 79 | 78 | 77 | 76 | 76 | 75 | 74 | 73 | 72 | 72 | 71 | 70 | 79 | | | | | | | | | | | | | 80 | 80 | 79 | 78 | 77 | 77 | 76 | 75 | 74 | 73 | 73 | 72 | 72 | 80 ------+----+----+----+----+----+----+----+----+----+----+----+----+------ _t._ |0°.5|1°.0|1°.5|2°.0|2°.5|3°.0|3°.5|4°.0|4°.5|5°.0|5°.5|6°.0| _t._ ======+====+====+====+====+====+====+====+====+====+====+====+====+====== TABLE I.——TEMPERATURE OF THE DEW-POINT, IN DEGREES FAHRENHEIT.