Broadly speaking, porches are divided into three types or classes. The first belong to the period beginning with the year 1745 and continuing until the year 1785, a space of time marked by stirring events, culminating in the Revolutionary War, and the birth of the new republic. Houses of this period are of the gambrel-roofed type. The second class adorn the succeeding type of dwelling,--the large, square, colonial house, built by the merchant prince, whose ships circumnavigated the globe, and who filled his home with foreign treasures; while the third type is that which ornamented the brick mansion which came into vogue about 1818. As many of these were erected during the commercial period, they cannot, strictly speaking, be called colonial; they belong rather to the Washingtonian time, and reflect in their construction the gracious hospitality of that day. Porches of varied colonial types are found in most of the New England cities and towns, in the Middle States, and in the South, and particularly fine examples can be seen in Salem, Massachusetts. There is about all of these a dignity and refinement that is unmistakable, bespeaking a culture that is felt at once, and a stranger wandering through Salem's streets cannot help but be impressed with the fact. Adorning the three-storied houses with their flat roofs, they give an artistic touch to what would otherwise be plain exteriors. From step to knocker, from leaded glass to the arched or square roof of the doorway, there is a plainness and simplicity which betokens art, but of such a quiet, unpretentious type that by the untrained eye it is hardly appreciated, though to the architect it brings inspiration and affords study for classic detail, the result of which is shown in the modified colonial homes of to-day. Romance and history are strangely intermingled in these old-time porches and doorways. Under their stately portals has passed many a colonial lover, doffing his cocked hat to his lady fair, who, with silken gown, powdered hair and patches, sat at the window awaiting his coming. Those were Salem's halcyon days, when the tide of life ebbed and flowed in uneventful harmony, free from the disturbing elements of latter-day life.