1895.] MICROSCOPICAL JOURNAL. 365 



X 5? in X i in. pine formed a stage; 2 in. x J in. x7-8 in. in du- 

 plicate held a 1 in. and 2 in. ocular for a condenser by a piece 

 of thick paper 8? in. x 1 in., folded with ends even and held be- 

 tween the duplicate pines by two small Indiarubber bands. 

 The loop held the ocular. This pine stand was successfully 

 used with the l-75th as follows: Object, human red blood cor- 

 puscles, dry and uncovered ; suitable field formed with a 1 in. 

 objective on clinical stand, which was then placed in pine stand 

 against the narrow edge of a oil flame (after Dr. O. W. • 

 Holmes). It was arranged so that flame, object, condenser, ob- 

 jective and ocular were in central alignment. The 1-75 in. was 

 then substituted for the I in. objective focussed and condenser 

 moved so as to give the best illumination. Besides Prof. Moody 

 the following were among the hundreds who looked through this 

 objective on a pine stand. Prof. Luther Whiting Mason, Ex-Gov- 

 ernor Long, Prof. Butterfield and Mr. L. L. Tower of Massa- 

 chusetts ; Hon. Solon Chase, Hon. W. W. Stetson, Prof. Gilman, 

 Superintendent J. H. Conant, Rev. Messrs. Lawrence and 

 Statdler, with the Irish Brothers and families (Buckfield), Prof. 

 A. H. Brad brd, Dr. Da Costa, with Mrs. and Miss Bisbee (Rum- 

 ford Falls) of Me. ; Mr. J. W. McConathy of Ky., and many 

 other teachers. 



P. S — When Mrs. Virginia M. Irish saw the pine stand she 

 said " they (her husband and brother) must make you a better 

 one from bird's eye maple." They did, burying the side pieces 

 in the body and mounting the condenser on 1 in. x 2 5-8 in. x 

 6i in. maple with a hole midwa}' to fit condenser. It is an 

 improvement. 



BIOLOGICAL NOTES. 



The Blood Corpuscle a Living Organism. — The ex- 

 tensive researches of Dr. Heitzmann, of New York, form- 

 erly of Vienna, with reference to the structure of blood corpus- 

 cles, are more or less known to the profession, and are of 

 exceeding interest. After a twenty years' sojourn in New York, 

 where his investigations have been carried on, he has recently 

 revisited his native city, and in a paper of absorbing interest 

 presented at the meeting of the Vienna Medical Society, the 

 more important results of his microscopical investigations, par- 



