137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 115 115 114 113 112 111 



Bff-liTi^ll. Z-l.'34Zffr 07-48. 5-31>l-7.83:i3.8a^l9.S 21 



137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 



Chart 49.— Composite monthly mean net heat exchange for January. 



82 



