Taking a sample of portland cement, which gave a strengtii u 

 5801T>s. at three months* and with six parts coarse sand 68Bjs. 

 then probably a stronger mortar would be obtained at the sami 

 cost, with eight to one cement, than with lime mortar ; th 

 mechanical difficulty however of using such a poor cement morta 

 for anytliing like neat work makes the lime mortar the cheapes 

 for ordinaiy work. 



WEDNESDAY, OCTOBER 2, 1889. 



Prof. LiVERSiDGE, M.A., F.R.S., President, in the Chair. 



Twenty-two members were present. 



The minutes of the preceding meeting were read and confirmed. 



The certificates of one candidate was read for the third time, 

 of three for the second time, and of one for the first tnne. 



The following gentleman was duly elected an ordinary member 

 of the Society :— 



Gale, Walter Frederick ; Sydney. 



The following letter was read :— 



M. Le President-It will be very kind on your part if you ^'i^.^-^J.^^ 

 to Zoology— especially those who possess collections of mainmif era, birds, 

 reptiles, insects, shelled or otherwise. For many years I have given my 

 attention to Hyhridation—th&t is to say, to the crossings of different 

 species, whether so produced either in a state of freedom or in captivity- 

 I can only arrive at a satisfactory result by consulting those naturalists 

 who have themselves been enabled to observe certain cases, or who by 

 means of their connections can refer me to other naturalists, collectors, 

 either amateurs or breeders. And if you yourself M. le President have 

 any knowledge of any of these facts, whether by study, reading or other- 

 wise, I shall be extremely obliged to you if you will let me know, i 

 really cannot sufficiently excuse myself for the liberty I am t^king.^n^ 

 you wTll^'have the go"dmjs*^ to"S.bM-J" m" TiX ^sv^vL in reply for which 



Proprietaire a Breaute au chateau c 



s not put under water a 



