LABORATORY APPLIANCES. 



BUY LABORATORY SUPPLIES IN PITTSBURGH 



THE " CITY OF LABORATORIES " 



MAGNIFYING 'GLASSES Only $10.80 



FOR THE POCKET 

 Best Quality Lenses, Hard Rubber Cases 



No. 50. 1 Lens, 18 mm. Diameter, 15c. net 



No. 51. 2 Lenses, 15 and 18 mm. 30c.net 



No. 56. 1 Lens, 25 mm. Diameter, 23c. net 



No. 57. 2 Lenses, 21 and 25 mm. 37c. net 



BUY A SAMPLE DOZEN 



S. M. Co.'s "UTILITY" DISH 



Handy for holding and manipulating solutions, samples, &c. 

 Diameter T/i cm., height 9 cm., full capacity 250 cc. 



ANY QUANTITY, 60G. PER DOZEN 



BUNSEN BURNER 



No. 100 



WITH FLAME CHECK. 

 HEIGHT, 15 cm. 



Well made and gives a perfect 

 flame. Nothing cheap but the 

 price 



25 Cents, net. 



We have 20 approved forms 

 Bunsen Burners, oovering every 

 possible requirement. 



for a " BAUSCH & LOME " 

 new form -. 



Microscope 



Complete for examination of all 

 objects, such as pond life, parts of 

 insect^ and other materials. 



Gives magnifications of 53 

 diameters (2,809 times) and 180 

 diameters (32,400 times). Fur- 

 nished in neat cherry carrying 

 case with metal handle. 



$10.80 



NET 



Our "COMPETITION" 



Laboratory Burner or Hot Plate 



DIAMETER AT BASE, 5 INCHES. 



Gives a hot flame with natural or artificial gas. A 

 eral purpose " burner for heating vessels and pans. 



gen- 



EACH, - 

 PER DOZEN, 



PRICE: 



$ . 1 5 net 

 $1.80 net 



TIME REGULATOR 



Should be in every laboratory. 

 Wholly relieves the operator 

 from care or anxiety. Auto- 

 matically shuts off supply of gas 

 at any desired time. Can be 

 used in connection with any gas- 

 heated apparatus. The gas valve 

 is metallic, gas-tight, and oper- 

 ates with absolute certainty. 



PRICE: 



$4.00 net. 



Botanical and Entomological Supplies. Reagents*and Staining Material, dry or in solution. 



MANUFACTURERS AND DIRECT IMPORTERS, 



7nA Penn Avenue, PITTSBURGH, PA. 



1 ae i^obt Express Printing Compaav 

 Rochester, N. V. 



