We are getting a second Leica cryocut 1850 for compatibility with our 1800
because of ability to intechange chucks (we also cut off stems from metal
chucks, Shandon, to have extras) AND knife holders.  The 1850 will fit in
the 1800 IF needed.  The disposable knife holder is improved, and antiroll
device for disposable blades is superior in 1850, plus there is room in the
chamber to work inside and put a Cryojane, Instrumedics with room left over
to work.  My 1800 has been a workhorse and a gem for 11 years. I also have
excellent regional service on instrument. 

Sounds like an advertisement, but a good instrument needs touting.   
Gayle Callis
MT,HT,HTL(ASCP)
Histopathology Supervisor
Veterinary Molecular Biology
Montana State University - Bozeman
Bozeman MT 59717-3610

406 994-6367
404 994-4303 (FAX)