Calendar: 1881-1882 Page 174

172 applied sciences The lectures to the Students of the First Year comprise -th Application of Practical Geometry to the purposes of Surveyor the Standards of Length Scales the Definition of Areas Reducing and Equalising Plane Figures the Di vision of Land the Duties of Surveyor the Cham Surveying by the Chain Chain Angles Offsets and Staff י ת Base Lines the Field Book Surveying Symbols the Con- Bati tinuation and Measurement of Base Lines when Obstructed Ascertaining the Distances to Inaccessible Objects Erecting of Perpendiculars with the Chain Classification of Surveys Cases of Surveying explanatory of the various Difficulties met with in Practice Surveying by Traverse the Construction and Use of the following Instruments -Cross Staff Optical Square Prismatic Compass Circumferentor Theodolite Level tnii and Staff Box Sectant Clinometer Angles of Elevation and tea Depression Allowances for hypothenusal error when survey- 18e ing on hilly ground the Protractor and Sector the Meridian 11 Line the Variation of the Needle from the true North the re Vernier Plotting Surveys from Field Notes Plan drawing and if transferring Plans enlarging and reducing Plans by the Pentagraph Eidograph and by the method of Squares During the Easter Term there is also instruction in the Field chain survey is carried out in the field and the usual difficulties that are met with in practice are dealt with ί Second Year Lecture Room from to every Friday during the Michael- mas and Lent Terms Field Work at 10 every alternate Saturday in the same Terms The Second Year course deals with the extended application in practice of the various surveying instruments -Triangu- lation Surveying with the Theodolite Repeating Angles Latitudes and Longitudes the Methods of Conducting Sur- veys of Towns by Theodolite and Traverse Surveys of Estates for Railways Roads Canals &c Box Sextant Adjustments the application of Plane Trigonometry and Logarithms Correction for Altitude Computation of Areas by Ordinates by the Computing Scale and by the Planimeter Dialling for