Fossil and Petrology collections, New South Wales containing diamond. Many samples in the recent part of the Petrology collection are either irreplaceable or extremely expensive to replace, such as the samples from the Snowy Mountain tunnels or the samples from drill holes. Hand written catalogues from the older parts of the collection are no longer used much because the information has been captured into the ROCKS database. However the old and newer parts of the collection are stored together and are frequently accessed on a day to day basis. There is a potential heritage value for parts of the Petrology Collections and Catalogues. The historical Catalogues could
The Philadelphia study development to display any social significance. The nearly completed and most advanced changes displayed the most stability within the study and showed intermediate correlation with the middle classes. The new and vigorous changes—the focal point of the study—displayed the strongest curvilinearity and most clearly encompassed the linguistically innovative nature of the inner classes. Through these Results, Labov asserted the truth and significance of what he named the Curvilinear Principle. With the social information gathered from the interviews, he discovered that it is not the education or occupation factors that drove the middle class to spur linguistic change. Rather, it was