Journal of Applied Microscopy. 



137 



In the June number of the Journal, I 

 described "A New Microscope Stand," 

 and when designing it I thought I had 

 found a satisfactory construction for 

 the portable form. Since then, I have 

 had one built and believe that it will 

 meet all requirements, except of the 

 most fastidious. 



The solid pillar construction of fine ad- 

 justment, as described for "A New 

 Microscope Stand," is retained, also the 

 same coarse adjustment, except that a 

 clamping screw is provided to prevent 

 the dropping or turning of the main 

 tube. The main tube is provided with 

 standard size draw tube and has society 

 screw. The stage, of liberal propor- 



rangement, is attached to a separate 

 plate and may be fixed to the lower side 

 of the stage by a locking device. This 

 also finds room in the case. 



The case is covered with leather, vel- 

 vet-lined, and provided with leather 

 handle and spring lock and key. A lock- 

 nut in the cover fastens the pillar of the 

 microscope to the case so that it cannot 

 turn. The locknut cannot be detached 

 from the cover. 



The microscope is inclined by raising 

 the cover of the case, which is fixed In 

 position by two metal strips which lock 

 into two pins in the lid. Thus the case 

 serves as a convenient and very efficient 

 base. The case is 8i in. long, 55 in. wide 



Portable Microscope in Case, one-third actual size. 



tions, 3 3-4x3 3-8 inches, is hinged to 

 a firm bracket in such a manner that 

 when the instrument is ready to place 

 in the case, it swings to a vertical posi- 

 tion and sufficiently at one side of the 

 pillar to permit the main tube to pass by. 

 When the stage is in position for use 

 the tongue at its rear end enters a 

 groove in the bracket, where it is held 

 by a strong spring catch, thus insuring 

 its fixed position and absolute rigidity. 



As shown in the figure, the instrument 

 may have the double nosepiece, and 

 may be opened or closed and placed in 

 the case without removing either nose- 

 piece, objectives, or any other part. 



The sinple form of the condenser, with 

 an iris diaphragm both below and 

 above the condenser, giving full control 

 of the substage illumination with and 

 without condenser, and having screw 

 focusing adjustment and swingout ar- 



and 2| in. high, and its total weight with 

 microscope and optical outfit is 31 lbs. 

 Edward Bausch. 

 Rochester, N. Y., July 26, '98. 



When the head of a blow fly is severed 

 from the body the "tongue" is apt to 

 collapse. A slight pressure on the head 

 will expand it. A beautiful specimen of 

 the expanded "tongue" may be secured 

 by splitting a small stick for a short dis- 

 tance, and, before removing the knife 

 blade, placing the head between the 

 separated parts. When the blade is 

 withdrawn, the head will be compressed 

 and the "tongue" expanded. Immerse 

 stick and "tongue" in turpentine and 

 leave for a few days, after which it 

 will be found well cleaned and cleared 

 and can immediately be mounted in 

 balsam. 



