The most of these have already been described, but there are two 

 forms new to Tasmania of great interest. 



The first is a fine specimen of the well-known Cephalopod, Aturia 

 f«>zac J. Sowerby, hitherto only found in Australia and New Zealand, 

 i-he second is undoubtedly Pecteil lucens, Tate, a species only 

 recently described by Prof. Tate, from Aldinga, and the Murray Cliffs, 

 o. Australia. 



With respect to the occurrence of the plant remains among 

 marine forms, it is most probable that the calcareous sandstones 

 were formed at the mouth of an estuary or river, and that the 

 leaves and other land organisms were washed down and included 

 with the marine forms. This interpretation also throws some light 

 upon the discovery of the almost complete skeleton of the species 

 of Halmaturus already obtained from this same calcareous sandstone. 

 J- he specimen referred to is still in the Tasmanian Museum. 



In conclusion, Mr. Johnston said he hoped that Mr. Bell would con- 

 tinue to make observations in this interesting locality. 



In submitting a new catalogue of Tasmanian tertiary fossils, Mr.- 

 Johnston stated that it was now about eight years since a com- 

 prehensive catalogue of the tertiary fossils of Tasmania had 

 been given to the world, and since then a great deal of work had been 

 done, and very great additions had been made to the list then given. 

 It was very desirable, in order that workers might ascertain what 

 had been done, that a comprehensive and specific list should be given 

 directing where distinct information might be gained. Accordingly 

 he had prepared a descriptive list embracing what was known of 

 the tertiary fossils, including some 380 species, and presented it to the 

 society in the hope that it would be found of service. He also pre- 

 sented the Museum with a number of rock types from which the 

 interesting plant fossils had been obtained at Table Cape, and a fossil 

 nautilus shell from the same locality, which was frequently found in 

 V ictoria, but had not previously been recorded in Tasmania. 



4. Mr. A. Mault read a long and able paper upon the "Drainage and 

 Sewerage of Hobart," in which he contrasted the relative merits of 

 surface drainage with underground drainage. He found that to 

 complete the system of surface drainage and make provision for 

 effectively carrying it out would cost a further outlay of £20,000, and the 

 annual cost of keeping it in order would be— after providing £9,000 

 annually for emptying pails and interest on £20,000— £16,300. Against 

 this, a system of underground sewers to receive water closets, and carry 

 the drainage system right out into the tideway of the estuary, could be 

 constructed for £60,000, and the annual expense, including interest on 

 that outlay, would be only £7,000. Under the latter system, provision 

 eould be made for mechanical or chemical purification of the sewerage 

 before it reached the outlets ; and it could be discharged at half ebb 

 tile so as to ensure its being carried out clear of Sullivan's Cove and 

 ^andy Bay, though this would only be necessary in the case of the 

 iSattery Point sewer. Hobart was peculiarly favoured for such a dis- 

 position of its sewerage as fifteen million tons of fresh water flowed 

 o-own the Derwent daily, and the If tons of solid fseoal matter that 

 Would be carried away in the sewerage by the institution of a general 

 ystem of water closets would not be appreciable in this immense body of 

 continually moving water. The whole question was the disposition of the 

 liquid excreta and house-slops, as the addition of the solids was nothing 

 in comparison with this. In Liverpool, with a population 26 times that 

 °t Hobart, and where the area of land drained by the Mersey was 

 much smaller than the Derwent, notwithstanding these adverse circum- 

 stances, the system he advocated was found to work well, and though 

 the rate of mortality was high there it was a densely packed town, 



