CHAS. LENTZ & SONS 
2368. C. Clamp to Hold Flasks, condensers, etc., lined with cork . $100 
2370. Qamp for Bofettes, with locknut to adjust position, cork-lined, 50 
2372. Clamp for Burettes, nickel-plated, with rubber guard .... 45 
2374. Hoffmann's Double Burette Clamp, to hold two burettes or 
other tubes, lined with cork 75 
2376. Bunsen's Clamp, with universal movement for holding small 
or large apparatus, condensers, etc., lined with cork, com- 
plete, with fastener. Heavy, well made and japanned ... l 75 
2378. Clamp Fastener, with two screws for attaching clamps to 
upright rod supports. 
Small 25 
Large . ... 30 
2380. Test-Tube Rack, for 18 ^-tubes, well made, oak ...... 75 
2382. Test-Tube Rack, specially well made and neatly finished for 
24 ^-inch tubes, in two rows. For stock cultures of 
bacteria, each 1 50 
2384. Test-Tube Rack, for 48 X-inch tubes, each 2 50 
2386. Test-Tube Rack, compact and folded when not in use, 
9/^ X 3 X 134^, each 50 
Compressors 
No. 2388 No. 2392 No. 2394 
2388. Spring: Compressors — Mohr's — Nickel- plated. 
vSmall. Medium. I,arge. 
Each $0.15 .20 .25 
Per dozen 1.50 2.00 2.50 
2390. Spring Compressors, patented. — Can be instantly opened or 
closed, and will remain in either position without pressure of 
the fingers, each $0 35 
2392. Lever Screw Compressors. 
Each . . ..... . $0.30 Per dozen $3.25 
2394. Screw Compressors — Hoffman's Improved form. Brass. 
Each.. ...... .$0.25 Per dozen $2.75 
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