- QLs- - ?9 c ^=r !r art3 ‘T? Cj 
is fully guaranteed by the favorable report made on them by the 
judges on the Centennial Commission. 
All material is of the best quality. The metal used in all our 
instruments is red or hard composition. The introduction of phosphor 
bronze for centres and pivots insures a hardness and consequent dura¬ 
bility only equalled by steel. 
The weight of our instruments is also carefully considered in con¬ 
nection with their use. Those intended for purely astronomical or 
the higher grades of geodetic work, while qot of excessive weight, are 
yet so constructed as to insure perfect stability. Those, the use of 
which necessarily involves much transportation by hand, are so con¬ 
structed that, while the weight is materially decreased, the strength 
required is obtained by a judicious and careful distribution of the 
material used. 
The packing of our instruments is also executed with the greatest 
care. All the portable instruments are packed in neat boxes, where 
the instruments and accessories are firmly and conveniently arranged, 
so they can be put in and taken out without trouble. 
Large instruments, especially those of iron frames, are covered with 
cloth-dust; this finish giving them a good appearance and tending to 
comfort in handling in cold weather. Unless otherwise ordered, we 
give our instruments a bronze finish. 
Although the illustrations in this catalogue give a fair idea of our 
instruments as at present made, yet it must be borne in mind that our 
constant aim is to improve on them, to increase their accuracy and 
simplicity, and make them convenient and pleasant to use. 
Particular attention is given to the designing of instruments for 
special uses. 
All instruments packed and forwarded by express at our risk. 
Terms net cash on delivery by express. 
