2726 Journal ot Applied Microscopy 



6.5 feet long by 2 feet wide. Across the under side, near the ends, are fastened 

 two cleats to prevent warping. The frame on which the top rests is 39 inches 

 long and as wide as the top. It is supported by four rollers 3.5 inches in diam- 

 eter. The top is 3 feet above the floor. It is fastened to the frame by two 

 stout hinges, placed a little beyond the middle, so that when it is raised to an 

 upright position it clears the floor. Two semi-circles of iron are fastened to the 

 sides, as shown in Fig. 1. They pass through clamps fastened on the sides of 

 the frame. A thumb-screw at this point fastens the top in any desired position. 

 Around the under edge of the top are twelve stout hooks, four on each side 

 and four across the top. In using the table, the body having been placed on it 

 is secured, first, by a Barton bandage applied to the head and fastened to the 

 hooks at the top. Additional security can be given by bandages passing across 

 the pelvis or other parts of the body and fastened to the hooks on the sides. 

 The body having been secured in this manner, the top is prevented from tilting 

 by a catch locking the upper end of the top to the frame. If it is desired to 

 incline the top, the thumb screws on the sides are loosened, the catch at the top 

 released, and pressure on the projecting end of the table causes the body to 

 assume any degree of inclination desired. When the desired position is reached 

 the thumb screws on the sides are turned and clamp the top in that position. 

 The table with the inclined body can then be wheeled or turned as desired. It 

 will be found of service in demonstrating the contents of the chest and abdomen, 

 and is particularly useful in making anatomical sketches in which it is desirable 

 to have the parts in a more or less upright position. Even when the body is in 

 an absolutely vertical position the stability is perfectly satisfactory. Any good 

 carpenter can make it. R. p. 



Method of Studying Living Bone Marrow. A. Wolff describes in the Deutsch. 



med. Wochenschr. Bd. 10, S. 165, 

 1903, a method which he has found useful in studying living bone marrow. 

 Long, tubular bones (e. g., the femur) of living animals are pierced under aseptic 

 conditions. A small portion of the marrow is removed and mounted in an indif- 

 ferent fluid. The amphilophile myelocytes may be seen to perform lively 

 amoeboid movements. R- p. 



A Method of Staining Sections Quickly The following method of hastening the 

 with Picro=Carniine. staining of sections with picro-carmine 



has been advocated by Freemann (Proc. Physiol. Soc, 1903, pp. xxx and xxxi). 

 The picro-carmine solutions used were Bourne's and Hoyer's. 



1. To 1 volume of Bourne's picro-carmine 9 volumes of O.'J per cent, acetic 

 acid are added, the mixture is filtered, preferably after boiling. The sections 

 are placed in the dilute picro-carmine, which is then heated quickly just to the 

 boiling point, and allowed to cool. As the fluid cools, the sections stain ; they are 

 at their best in 3 to 4 minutes. Water may be used instead of dilute acetic acid, 

 but the effect is not so good ; the addition of acetic acid to picro-carmine in cer- 

 tain conditions has been recommended by Weigert. 



2. To 1 volume of Hoyer's picro-carmine (solution made as directed by 

 Hoyer) 19 volumes of water (best distilled) are added. The sections are treated 



