Average Seasonal Storm Tracks in the Northern Hemisphere, 1878–1887
A map from the U.S. weather Bureau of a portion of the northern hemisphere showing average tracks of cyclonic areas, by months and seasons, over the northern hemisphere, from 1878-1887. The map uses various line types to show the general storm tracks...

Cyclone Frequency, 1878–1887
A map from the U.S. weather Bureau of the northern hemisphere showing cyclone frequency in 1878–1887. The colored areas show the frequency of cyclones, with the darker areas indicating greater frequency, and the uncolored areas indicating littl...

Magnetic Meridians in the Northern Hemisphere, 1888
A map from 1888 of the northern hemisphere showing the magnetic meridians and compass variations of the hemisphere. "The compass is essentially a freely swinging magnet. The pole of this magnet or ‘needle,’ which points to the magnet...

Seasonal Isothermal Charts of the Northern Hemisphere, 1888
A map from 1888 of the northern hemisphere showing areas of typical mean monthly temperatures in January and July. Isothermal lines, or isotherms, show areas with the same mean temperature. The regions in which the mean temperature is higher than 70&...

Isobaric and Wind Charts of Northern Hemisphere, 1888
A map from 1888 of the northern hemisphere showing areas of typical barometric pressures and wind directions in January and July. On this map, prevailing winds for each season is given with the arrows flying in the direction of flow. Isobars, or line...

Typical Paths of Cyclones in the Northern Hemisphere, 1896
A map from 1896 of the northern hemisphere showing the typical paths of cyclones in the hemisphere. This map "shows the paths pursued by a great many individual cyclones. The arrow–headed curved lines show at their beginning the place of f...

Relief Map of the Northern Hemisphere, 1909
A relief map from 1909 of the northern hemisphere on a globe perspective. The map shows mountain systems, terrain features, and rivers. Due to the disproportionate percentage of landmass in the northern hemisphere, it is sometimes referred to as the ...

View from the North Pole, 1910
A base map from 1910 looking down on the earth from the North Pole, to show how the meridians come to a point at the North Pole. Notice that if the 0 meridian were continued, it would unite with the meridian 180. The longitude circles of the Arctic C...

North Pole, 1910
A base map from 1910 looking down on the earth from the North Pole, to show how the meridians come to a point at the North Pole. Notice that if the 0 meridian were continued, it would unite with the meridian 180. The longitude circles of the Arctic C...

Northern Hemisphere, 1919
An oblique view of the northern hemisphere from 1919 showing the continents, oceans, major rivers, and lines of latitude and longitude, and illustrating that the majority of the earth's surface landmass is situated in this hemisphere....