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�(1.) Name some of the principal points to be kept in view in preparing designs?—(2.) Why should attempts at designing be confined to one class of machinery?—(3.) What objection exists to examining references when preparing designs?3. Two elevations taken at right angles to each other, fix all points, and give all dimensions of parts that have their axis parallel to the planes on which the views are taken; but when a machine is complex, or when several parts lie in the same plane, three and sometimes four views are required to display all the parts in a comprehensive manner.

Shaping machines as machine tools occupy a middle place between planing and slotting machines; their movements correspond more to those of slotting machines, while the operation of the tools is the same as in planing. Some of the advantages of shaping over planing machines for certain kinds of work are, because of the greater facilities afforded for presenting and holding small pieces, or those of irregular shape; the supports or tables having both vertical and horizontal faces to which pieces may be fastened, and the convenience of the mechanism for adjusting and feeding tools.Very large divisions marched from Visé to the pontoon bridge in the direction of Tongres. After the Liège forts had been taken the bridge might be passed in perfect safety. All day long troops came along that road without interruption. I could quite see that the soldiers who were at Visé the previous day, and brought about the conflagration, were gone, for they had left their traces behind. All along the road lay parts of bicycles, shoes, instruments, toys, and so on, everything new77 and evidently looted from the shops. Very valuable things were among them, everything crushed and smashed by the cavalry horses, the clumsy munition and forage waggons, or the heavy wheels of the guns.Professor Noyons took me all over the hospital, and if I should describe all I saw and heard there, that story alone would fill volumes. He took me, for example, to a boy of eight years old, whose shoulder was shattered by rifle-shots. His father and140 mother, four little brothers and a sister, had been murdered. The boy himself was saved because they thought that he was dead, whereas he was only unconscious. When I asked for his parents, brothers and sister, he put up his one hand and, counting by his little fingers, he mentioned their names.

The war is not over yet, and much is still hidden under a veil, but after the war it will undoubtedly be the duty of the Louvain people to twine a magnificent wreath round the three names Noyons-Nerincx-Claes.The streets offered the same aspect as those at Visé. From each house floated the pitiful little white flag; the people sat together on their "stoeps," for they did not venture out in the streets. Everywhere I was again saluted in the same cringingly polite manner, and eyed with suspicion.Even a doctor of the Red Cross established at St. Hadelin College had been removed in his white overall and wearing his Red Cross armlet. This was Dr. Labye, who already had rendered signal services to the wounded Germans. In consequence of his detention twenty of them were left in the hospital without medical attendance....

�By refusing to pay at cafés and shops the military already expressed their dissatisfaction. Then on Thursday, August 20th, about six in the evening, after a great many troops had crossed the river by the pontoon bridge, a shot was heard which seemed the sign for a terrible fusillade. Guns seemed to have been mounted at convenient places outside151 the town, for shells exploded right at its centre. The troops did no longer cross the bridge, but spread themselves in a disorderly manner all over the town, constantly shooting at the windows. Even mitrailleuses were brought into action. Those of the inhabitants who could fly did so, but many were killed in the streets and others perished by bullets entering the houses through the windows. Many others were shot in the cellars, for the soldiers forced their way in, in order to loot the bottles of wine and to swallow their fill of liquor, with the result that very soon the whole garrison was a tipsy mob.

�And at present? Every word expressed hate, profound hate, hardly controlled. They trembled all over when they spoke in deep, inspiring voices about "die Duutschen."[2]Labourers were called up to assist in reinforcing the conquered forts on the left bank of the Meuse, the forts which by and by might be used to shell their fellow-countrymen, in case the Germans should be forced to retire. Nobody will have offered himself for this work voluntarily, the less so as the proclamation wound up as follows:—

In this relative calm the population felt somewhat relieved, and ventured again into the streets. Outdoors on the "stoeps" of the houses men sat on their haunches smoking their pipe and playing a game of piquet. Most of them were vigorous fellows, miners, who did not mind any amount of work, but now came slowly under the demoralising influence of idleness.31On this day, August 8th, the reign of terror was still in full force. There were repeated threats to burn the town and to kill the inhabitants if they objected to do work or to deliver certain goods, especially wine and gin, of which thousands of bottles were requisitioned daily. Several times a day they were summoned by a bell and informed what the invader wanted, the necessary threats being added to the command. And the inhabitants, in mortal fear, no longer trusted each other, but searched each other's houses for things that might be delivered to satisfy the Germans.

Finishing and fitting relates to giving true and accurate dimensions to the parts of machinery that come in contact with each other and are joined together or move upon each other, and consists in cutting away the surplus material which has to be left in founding and forging because of the heated and expanded condition in which the material is treated in these last processes. In finishing, material is operated upon at its normal temperature, in which condition it can be handled, gauged, or measured, and will retain its shape after it is fitted. Finishing comprehends all operations of cutting and abrading, such as turning, boring, planing and grinding, also the handling of material; it is considered the leading department in shop manipulation, because it is the one where the work constructed is organised and brought together. The fitting shop is also that department to which drawings especially apply, and other preparatory operations are usually made subservient to the fitting processes.�A learner should, in fact, consider the application and operative conditions of gearing as one of the main parts of the subject, and the geometry or even the construction of wheels as subsidiary; in this way attention will be directed to that which is most difficult to learn, and a part for which facilities are frequently wanting. Gearing may be classed into five modifications—spur wheels, bevel wheels, tangent wheels, spiral wheels, and chain wheels; the last I include among gearing because the nature of their operation is analogous to tooth wheels, although at first thought chains seem to correspond more to belts than gearing. The motion imparted by chains meshing over the teeth of wheels is positive, and not frictional as with belts; the speed at which such chains may run, with other conditions, correspond to gearing.

For the rest the transports were not much troubled now, for obviously the bridge was no longer the objective of the Belgian guns. At Visé I was even told that Fort Pontisse had just been57 taken and only Lierce could harass the troops, who, after crossing the bridge, advanced towards Tongeren.Between my tours through the Liège district I made a trip in the direction of Tongres, because I wanted to know what had become of all those Germans who had crossed the Meuse near Lixhe. It was remarkable to notice how friendly the Flemings of that district behaved with regard to the Germans. Although they criticised the violation of the country's neutrality sharply, and every family was proud of the sons who had taken up arms in defence of their Fatherland, yet they judged quite kindly the German soldiers who passed through their district. I often heard expressions full of pity toward those men, who could not help themselves, but were compelled to do whatever their superiors commanded them."Is that so? Well, it is not very clear! And that little girl?"