The consideration of the routes from Dnn edin to Blucskiu was thus re luced to three, an l in examining them Mr Blair worked f.»r gradients of lin 50. The result is that he rejects the one via the Leith —or No. 3 — for one between tho head of Siiwyei's Bay Valley and the cast branch ot the Waitati, or No. 4. lis height is about 1100 feet, aud the distance from sea level on buth sides about seven miles, thus making the summit level < f railway about 400 feet below the saddle. The length of tunnelling required will probably be about 40 chains. Mr Blair thinks that generally this route presents greater facilities for the construction of a railway than the one via the Leith, and it has the additional advantage of being a direct continuation of the Clutha line, while the other would leave Duneiin on a brauch. From Blueskin to Dunedin there are no en gineering difficulties to speak of. The gra dients are all easy. From Waikouaiti to Moeraki the country is much easier, an 1 the plans more definite, so tie line has been laid down with greater preci sion. Leaving the Government township of Hawksbury, near the middle of the lagoon, it rises on the slope to the east thereof, crosses the main road, and run? almost straight to the saddle, about 20 chains westward from the Bendigo Hotel. At this point the line tends eastwards, re crossing the main road, below Trigonometri cal station 11, and regains the flat in section 39, block 4, Havrkalury district. It then ruus round the point of the spur into the Green Swamp an. I Pleasant Valley, striking the latter at the lower fellmongery. Plea sant Creek is crossed on Mr Hepburn's property, and for the remainder of the distance up the valley the Hue keeps to the east of the road, between the creek and the high ground. Opposite Mr Douglas' homestead it takes a sharp curve eastward, following up the water-course in sections 22 and 14, block 4, Hawksbury district, and enters Palmerston by the Manse Guliy and Rimbrake street. 