los 3 
SCPENCEH 
SINGLE CoPIEs, 15 cTs. 
NEw SERIES. : 2 
Vou. VI. No. 133. FRIDAY, JULY 16, 1897. ANNUAL SUBSCRIPTION, $5.00. 
MINOT AUTOMATIC 
PRECISION ‘MICROTOME 
PARAFFINE 0k CELLOIDINE | SERIAL or SINGLE SECTIONS 
DR. MINOT says (in SCIENCE, Vol. V., p. 862): 
‘The usual sources of error (in microtomes) are: 1, the bending of 
the knife; 2, the yielding of the object to be cut; and 3, the jumping 
of the sliding gear. All these defects are at their maximum in the 
Rivet type of Microtome of which the best known form is the Hei- 
delberg or Thoma-Jung. It is believed that in the new microtome 
these three sources of error are materially diminished.” 
SEND FOR CATALOGUE. 
Baiiéch & Lomb Optical Co., Rochester, N. Y. 
