14 Cultivation of Microscope Fungi. [Tu\^lL, jIS:T?87a ' 



I had the satisfaction of exhibiting several times to Mr. Eeade, 

 the upper and lower beads of the test-scales he brought with him, 

 and we were both greatly pleased with the beautiful, I might say- 

 exquisite, colouring of the rows of beads or rouleaus, according as 

 they were in the upper or lower plane. Not less remarkable were 

 the prominent and enlarged appearance of every fourth or fifth 

 bead of a vivid azure blue : a phenomenon capable, no doubt, of 

 good physical demonstration. 



The azure blue scales described in the paper are similar in 

 structure to the Macrotoma Major ; but very finely marked, more 

 dehcate and transparent. 



Altogether this new test promises a new field of research. 



IV. — Cultivation, &c., of Microscopic Fungi. 

 By E. L. Maddox, M.D. 

 Plate XXXVIII. 

 The cultivation of Microscopic Fungi offering such a wide and 

 tempting field for research, and the few experiments conducted in 

 reference to " Mucor Mucedo," as stated in a previous article, p. 140, 

 vol. ii. of this Journal, being incomplete, others were set forward 

 without delay ; but unfortunately, from unavoidable absence from 

 home shortly after, they must for the present be entirely passed 



EXPLANATION OF PLATE. 



Fig. 1. — a. a. Spores or couidia of Oidium Tuchcrii. 



b. The same, germinating. 



c. Pedicels with fruit. 



d. Older stalks, rough on tlio outside. 



e. Small nucleated spores and bacteria. 



„ 2 — f. Spores or conidia from brand on orange leaf. 

 g, h. The same, germinating. 

 i. Stalk with spores— one — rough on the outside. 

 j. Small spores nucleated. 



k. Part of an old mycelial thread, with minute bodies 

 enclosed between the septa. 

 „ ?>.— I. Spore or conidia from brand on leaf of a climbing plant. 

 m. The same germinating and producing irregular cells. 

 n. Terminal cell supposed to have discharged the minute 



bodies. 

 0. Moniliform rows of Penicillium glaucum. 

 p. Mycelium from the brand on the leaf. 

 „ 4. — Figures of the bodies now found (Dec. 13) in the two large drops 

 of juice alluded to in pp. 144, 145, vol. ii., of this Journal, repre- 

 senting the true spores, the small schizonematous bodies and 

 minute granules or molecules, and which show them to appear 

 at least as fungoidal elements. 

 „ .5. Cultivating slide. 



