504 Miscellaneous Implements Exhibited at Chester. 
and therefore it is not necessary to describe it again, as the 
general structure and principle of working are the same. The 
wire cradles in which the test tubes are placed, instead of 
being fixed as formerly, are now hinged at the top and free to 
swing from the centre outwards till they assume a more or less 
horizontal position, in obedience to the centrifugal force imparted 
to them. This machine was tried in the dairy, and the manipu- 
lation did not appear to be difficult. The results were clear and 
easy to read, and by reference to a printed table the percentage 
of butter-fat obtainable by the churn, and by analysis respectively, 
also the solids not fat and the total solids, were seen at a glance, 
Fig. 9.— Wynne. Edwards’s Hay Press. 
and possible errors of calculation thereby prevented. This cer- 
tainly is the nearest approach to a milk-tester for farm purposes 
that we have yet seen, not only in simplicity but also in price. 
It is a question, perhaps, whether the nicety required for 
the accurate use of such appliances as this ought to constitute 
an argument against their introduction to the farmhouse. It 
might be urged with some force that nicety in one direction will 
tend to carry with it an appreciation of nicety in other direc- 
tions, a result much to be desired in all dairy operations. This 
department, however, might well be delegated to an intelligent 
grown-up daughter, when available, especially if she has 
attended a dairy school, as likely to obtain more reliable 
