Bélidor, Bernard Forest de, La science des ingenieurs dans la conduite des travaux de fortification et d' architecture civile

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              <s xml:id="echoid-s3599" xml:space="preserve">
                <pb o="6" file="0184" n="190" rhead="LA SCIENCE DES INGENIEURS,"/>
              fois à diverſes repriſes: </s>
              <s xml:id="echoid-s3600" xml:space="preserve">on commence ordinairement la prépara-
                <lb/>
              tion des terres dans le mois de Mars; </s>
              <s xml:id="echoid-s3601" xml:space="preserve">mais il vaudroit mieux la
                <lb/>
              faire dans l’hyver, parce que les petites gelées ſont excellentes
                <lb/>
              pour les bien corroyer: </s>
              <s xml:id="echoid-s3602" xml:space="preserve">le veritable tems pour faire la Brique eſt
                <lb/>
              pendant les mois de May & </s>
              <s xml:id="echoid-s3603" xml:space="preserve">de Juin, parce que dans cette ſaiſon
                <lb/>
              elle a tout le tems de ſeicher, pour être enſuite plus propre à met-
                <lb/>
              tre au Four; </s>
              <s xml:id="echoid-s3604" xml:space="preserve">car il faut autant qu’il ſe peut éviter la ſaiſon trop
                <lb/>
              avancée, les Briques faites alors n’étant pas ſi bonnes à beaucoup
                <lb/>
              près que celles qui ſont faites en Eté.</s>
              <s xml:id="echoid-s3605" xml:space="preserve"/>
            </p>
            <p>
              <s xml:id="echoid-s3606" xml:space="preserve">Ce n’eſt pas aſſez d’avoir inſinué ce qui peut contribuer à faire
                <lb/>
              de bonnes Briques, il faut encore diſcerner les bonnes & </s>
              <s xml:id="echoid-s3607" xml:space="preserve">mau-
                <lb/>
              vaiſes qualitez de celles qui ſe trouvent en Magaſin, puiſque c’eſt
                <lb/>
              de-là que dépend la durée de l’ouvrage qu’on veut éxécuter. </s>
              <s xml:id="echoid-s3608" xml:space="preserve">Vitruve
                <lb/>
              raporte que de ſon tems, dans la fameuſe Ville d’Utique, le Ma-
                <lb/>
              giſtrat, pour empêcher toute male-façon, ne permettoit pas qu’on
                <lb/>
              en employât pour aucun Edifice, qu’il ne les eût viſitées aupara-
                <lb/>
              vant & </s>
              <s xml:id="echoid-s3609" xml:space="preserve">donné ſon approbation: </s>
              <s xml:id="echoid-s3610" xml:space="preserve">on s’aperçoit bien que cette ſage
                <lb/>
              police n’eſt plus d’uſage parmi nous, puiſqu’à la confuſion de la
                <lb/>
              plûpart des Entrepreneurs, l’on voit tous les jours des Bàtimens
                <lb/>
              menacer ruine, avant pour ainſi dire d’être achevez.</s>
              <s xml:id="echoid-s3611" xml:space="preserve"/>
            </p>
            <p>
              <s xml:id="echoid-s3612" xml:space="preserve">La Brique, qui eſt d’une couleur jaune, aprochant un peu d’un
                <lb/>
              rouge pâle, eſt bonne, parce qu’ordinairement elle a été faite d’une
                <lb/>
              terre graſſe, comme eſt celle dont nous venons de parler. </s>
              <s xml:id="echoid-s3613" xml:space="preserve">On con-
                <lb/>
              noîtra encore la bonne Brique au ſon, car celle dont il ſera le plus
                <lb/>
              net ſera préférable aux autres dont le ſon eſt ſourd. </s>
              <s xml:id="echoid-s3614" xml:space="preserve">Il arrive aſſez
                <lb/>
              ſouvent que des Briques faites d’une bonne terre, & </s>
              <s xml:id="echoid-s3615" xml:space="preserve">préparées
                <lb/>
              également, ſont de differentes couleurs, & </s>
              <s xml:id="echoid-s3616" xml:space="preserve">par conſéquent de dif-
                <lb/>
              ferentes qualitez, & </s>
              <s xml:id="echoid-s3617" xml:space="preserve">cela ſe diſtingue ſur-tout quand on en voit qui
                <lb/>
              ſont plus rouges les unes que les autres, qui n’en ſont pas pour cela
                <lb/>
              meilleures, mais au contraire, puiſqu’elles ſont d’une très-mauvaiſe
                <lb/>
              qualité, parce qu’elles ont été placées dans le Four à des endroits
                <lb/>
              où le feu n’a pas eû aſſez de force pour les cuire, ce qui fait qu’elles
                <lb/>
              ne réſiſtent pas à la gelée ni au poids dont elles ſont chargées, ſe
                <lb/>
              caſſant & </s>
              <s xml:id="echoid-s3618" xml:space="preserve">ſe réduiſant en poudre facilement.</s>
              <s xml:id="echoid-s3619" xml:space="preserve"/>
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            <p>
              <s xml:id="echoid-s3620" xml:space="preserve">Enfin, la preuve la plus ſûre pour connoître la bonté de la Bri-
                <lb/>
              que, quand il s’agit de quelque Ouvrage d’importance, dont on peut
                <lb/>
              differer l’execution d’une année, c’eſt de coucher celles que l’on
                <lb/>
              veut employer, ſur la terre pendant l’hyver, pour y eſſuyer la gelée,
                <lb/>
              parce qu’alors celles qui y auront réſiſté ſans ſe feüilleter, & </s>
              <s xml:id="echoid-s3621" xml:space="preserve">auſ-
                <lb/>
              quelles il ne ſera arrivé aucune alteration conſiderable, pourront
                <lb/>
              être miſes en œuvre en toute ſureté.</s>
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