27° TAXIDERMY AND MODELLING 



The following is the outcome of recent experiments, and, 

 although last in order, is, without doubt, the very first of all 

 glue modelling-compositions from every point of view. 



97.— Modelling-glue (M.B.) 



Glue (best Scotch) . . 6 oz. 



Water .... i „ 



Glycerin . . . . 7 „ 



Canada balsam . . . . 2 „ 



Remarks upon the Making and Use of the Modelling-glues 



The method to be adopted in making all the glue model- 

 ling-compositions is the same, viz. the glue is broken up 

 small, and to do this it should be wrapped in a strong cloth 

 and beaten with a wooden mallet, and afterwards pounded in 

 a mortar. It is then put, with its allowance of water, into 

 a water bath, and by this is always meant, in these pages, a 

 vessel set or supported in another in which water is boiling ; 

 an ordinary glue-kettle is, therefore, a water bath, but " Clarke's 

 food-warmers," set over a spirit-lamp, serve admirably for half 

 the quantity given. 



Whilst the glue is being got ready, the glycerin and oil 

 are heated separately, each in a water bath also, the glycerin 

 taking about an hour, and the oil about two hours, to get hot, 

 but sometimes they will warm sufficiently in an oven, and 

 indeed, in the case of Formula 97, the glycerin and Canada 

 balsam may be mixed, and warmed with ease in an oven in a 

 short time. If a sufficiency of glue-kettles cannot be procured, 

 strong " gallipots," or, when quantities are required, lat^e stone- 

 ware jars such as are used for salt, set in a saucepan of boiling 

 water, will do for the glue, etc., provided the surrounding 

 water' is not allowed to boil over into the inner vessel. 



In the cases of Formulae 95 and 96, when the glue is 



