EOO 591 EOO
Introduction of Byzantine style, ii. 371.
Comparative merits of Greek and Roman architecture,ii. 372.
Employment of the arch, ii. 372.
Of the Pantheon , an example of the introduction of thedome, ii. 372.
Various other examples of the circular form, ii. 372.Adoption of this form for tombs, ii. 373.
Examples of ditto, ii. 373.
Circular temple at Balbec , ii. 373.
Characteristics of Roman architecture, ii. 373.Pantheon , ii. 259.
Amphitheatre, i. 3.
Palmyra, ii. 254.
Roman Order, ii. 373.
Roman Order, ii. 373.
Composite Order, i. 185.
Order, ii. 244.
Composition of, ii. 374.
Table showing proportions of this order, ii. 374.Romanesque Architecture, ii. 374.
Roman Architecture, ii. 370.
Byzantine Architecture, i. 68.
Lombardic Architecture, ii. 109.
Saxon Architecture, ii. 400.
Norman Architecture, ii. 234.
Rood, ii. 374.
Rood Beam, ii. 374.
Rood Tower, ii. 374.
Roof, ii. 374.
Of early roofs, ii. 374.
Different forms of, ii. 375.
Definitions of technical terms, ii. 375.
If a heavy body abcd be suspended by any twoinclined strings D e and C f, in a vertical plane, aright line drawn through the intersection ^perpen-dicular to the horizon, will pass through the centre ofgravity of the body, ii. 376.
Given the position in which a body should be placed,and the position of a plane supporting the body atone end, to find the position of another plane to sup-port it at another given point, and to find the pressure onthe planes, the weight of the body being given, ii. 376.In any roof constructed with two equal rafters only, asthe height of the roof is to half the breadth of thebuilding, so is half the weight of the roof'to the hori-zontal thrust, or lateral pressure, ii. 377.
If a rafter bear any weight, or have a weight uniformlydiffused over it, the force tending to break it is equalto the cosine of elevation multiplied into the weightdivided by the radius, ii. 377.
To prevent the rafters of a roof with a tie-beam frombending in the middle, and to remove lateral pressurefrom the walls when there is no beam, ii. 377.
If a roof be constructed with two equal rafters, with atie extending from the bottom of each, to an inter-mediate point in the opposite rafter, and the tieshalved together at their intersection, so as to formwith the rafters a quadrilateral and two triangles; tofind the force tending to break the rafters, ii. 378.
To remove the lateral pressure of a roof without anyintermediate beam, brace, or strut, ii. 378.
Given the construction of a roof of which not more thanthree timbers meet at the same junction, and aforce in the direction of any one of the timbers, tofind the forces communicated to the other timbers, sothat the roof shall be in equilibrio, ii. 379.
Given, the lengths of the rafters of a roof, and theirangles of position, to find those angles that requireties, and those which require struts, ii. 379.
To discover the effect of bracing the angles of a roofflat on the top, supported by puncheons at the bottomof the rafters to accommodate a semicircular ceilingwithin, ii. 369.
Mode of constructing roofs, ii. 380.
Strength of materials, ii. 380.
Description of roof of—
“ Chapel of Greenwich hospital,
ii. 381.
“ S. Paul’s, Co vent Garden,
ii. 381.
“ Old Drury Lane Theatre, ii. 381.
“ Govent Garden Theatre, ii. 381.
“ Present Drury Lane Theatre,
ii. 381.
“ Church of St. Martin in the
Fields, ii. 381.
“ Basilica of St. Paolo fuori le
murA, ii. 382.
“ Croydon Railway Station, Lon-
“ Christ’s Hospital, ii. 382.
n Exeter Hall, ii. 382.
“ St. George’s Hall, Liverpool ,
ii. 383.
To find the scantling of a king-post, ii. 383.
“ a queen post, ii. 383.
“ tie-beams, ii. 383.
“ principal rafters, ii. 383.
“ when there is a king-post in
middle, ii. 383.
“ when there are two queen-posts,
ii. 383.
“ straining-beams, ii. 383.
“ struts and braces, ii. 383
“ purlins, ii. 384.
“ common rafters, ii. 384.
Description of roof of riding-house, Moscow , ii. 384.
Of roof designed by Bettancourt, ii. 384.
Of roofs of 16th century by Philibert de Lorme, ii. 384.Example of do., at Pantheon , Oxford-street, ii. 384.Colonel Emy’s improvements on Philibert’s roof, ii. 384.Description of the earliest roof of this kind erected atMarac, near Bayonne , ii. 384.
Construction of roof of transept at Great Exhibition ,ii. 385.
Description of M. Laver’s system of construction ofroofs, ii. 385.
Of open Gothic roofs of Middle Ages, ii. 386Examples of a later date, ii. 386.
Hammer-beam roofs of 15th and 16th century, ii. 386.Description of roof at Hampton Court , ii. 386.
“ Westminster Hall, ii. 386.
Of iron roofs, ii. 387.
Roof of arrival and departure - shed, Euston Grove,ii. 387.
Roof of engine-house, Camden Town, ii. 387. •
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