PAGE. 



Mackerel, Habits of . . . . xi 



Marennes . . cxiv 



Maryland Academy of 



Sciences.. 66 



Maryland Fish Com'n, iv, viii 



McCrady, Prof. Jno 78 



McDonald, Marshall, iv, ix 



^McDonald's Fish Way.... xv 

 McDonald's observations 



on herring Lii 



Meckelia 34 



Menhaden 34 



Mery.... 76 



Mesosomal 11 



Methods of remo\dng ani- 

 mal orrowth.... .... 52 



Microscopic fauna 22 



Microcionaprolifenim, 32, 37 



Minute monads 32, 38 



Mobius, 16,26 30.33.40,49, 



60,61,78, 79 



MobjackBay ix 



Modiolaria S-^S^y 62 



Molgula 34 



Mollusks 21 



?vlud and young fry ... , 49 



Mud or gizzard shad ... xlix 



Mullus 33 



Mya Arenaria, 5.35,40,83, 84 

 Mya, Importance and val- 

 ue of. . 36 



Mya, Spawning season 



of- 35, 83 



Mytilus 32, 36 



N 



Nassalus 38 



Natural Banks 26 



Navicula 20 



" ostrearia . , 20, 21 



Nereids 35 



Nurseries ^y 



O 



Observations on alewives li 



Obstructions on Patuxent xiii 



Oligochaetous 35 



Osmosis, Laws of . . . 14 



Ostrea and I\Iya .... 5 



" conchaphila, Cal . 60 



•' cucullata, Viti Id's 



Pacific O . . . 60 



" edulis . .12, 66, 65 



PAGE. 



" equestris Say, Flor- 

 ida 60 



" peruviana, Peru . 60 



" virginiana . . 37, 68 



Oyster, The (Ostrea vir- 

 giniana) Cv 



Oysters adhere in clusters 27 



Oysters, American ... 50 



Oyster beds, fauna of . . 32 



Oyster " in Pokomoke 



and Tangier Sounds . Cvi 



Oyster crab ...... 24 



Oyster culturist, Enemy of 48 



Oyster culture in Ches. Bay cxi i 



Oyster, development of . Cxi 



Oysters, Effect of mud on 48 



Oyster embryoes die on 



cold days cix 



Oyster, European ... .4, 



16,60, 61 



Oyster, fauna of as inter- 



perdent communities.... 40 



Oyster, Food of 19 



Oyster, Generative organs 



of the 15 



Oyster, Growth of divided 



into three stages. ... 64 



Oyster Laws 95 



Public Local Laws 114 



Dorchester County.... 114 



Potomac River 114 



Somerset County 124 



Wicomico " 129 



Worcester " 127 



Oyster, Nervous system of 



the .'. 14 



Oyster, Number of which 



reached maturity cvi 1 1 



Oyster, "Poor" during 



spawning season... 18 

 Oyster, Sexes of are dis- 

 tinct 15 



Oyster, Shell of the . . . 6 



Oyster, Stomach of the . n 

 Oystermen, Notions of as 

 regards fattening the 



oyster 23 



P 



Patapsco River xi 



Patterson, Carlisle P • cvi 



Pedesis or Brownian 



movement 19 



